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Interwar-Period Gaming Today for Conflicts Tomorrow: Press ‘Start’ to Play, Pt. 3

By Major Jeff Wong, USMC

Interwar-Period Gaming  Insights and Recommendations for the Future

The militaries of Germany, Japan, and the United States utilized gaming between the First and Second World Wars to help them overcome challenges relating to doctrine, organization, training and education, and capabilities development. The Versailles Treaty prohibitions prompted Germany to use means other than live-force exercises to study and mature its combined arms concept, test naval and air doctrine, and drive planning for the invasions of Poland, France, and the Low Countries in the European theater. Japan effectively used wargames to inform doctrine and war planning, but biases affected game outcomes and subsequent planning of future campaigns, particularly the Battle of Midway. Japan gamed both strategic and tactical elements of its ambitious Pacific campaign, studying in detail essential tasks as part of its Pearl Harbor and Midway operations plans. Game insights prompted planners to change parts of its Pearl Harbor attack, but failed to sway leaders to examine more closely a critical element of the Midway campaign. The United States, particularly the Navy, combined wargaming with analyses and live-force exercises to study upcoming likely threats and advance naval concepts and capabilities such as carrier aviation. In the United States, Naval War College games of different variations of Plan Orange exposed officers to the theater, operational, and tactical challenges of a conflict against Japan. Many games played over the years between the world wars created a baseline of understanding about how naval officers would fight when war broke out. Now, nearly a century later, today’s U.S. military should apply best practices from those interwar years to spur innovation and overcome the kinds of strategic, operational, and institutional challenges that plagued these adversaries before the Second World War.

This is the final part of a three-part series examining interwar-period gaming. The first part defined wargaming, discussed its potential utility and pitfalls, and differentiated it from other military analytic tools. Part two discussed how the militaries of Germany, Japan, and the United States employed wargames to train and educate their officers, plan and execute major campaigns, and inform the development of new concepts and capabilities for the Second World War. This final part offers recommendations, taken from effective practices of this period, to leverage wargames as a tool today to provide a strategic edge for the U.S. joint force tomorrow.

Wargaming for Today

First, the U.S. military must expand and deepen the use of wargaming at PME institutions as a training and educational tool. Similar to the interwar period, wargames should be used to train officers to make decisions from a commander’s perspective, gain insights into likely adversaries, and learn about the war plans to counter or defeat them. Wargaming design should be part of the regular curriculum to reinvigorate this technique within the uniformed military, since PME institutions are intended to broaden officers’ professional horizons and allow them to explore new ideas. 

At the interwar-period Kriegsakademie, some students had never experienced the brutal combat of World War I and never faced decision-making under fire. Wargaming woven throughout the curriculum gave these future leaders an opportunity to practice “commandership” from the commander’s perspective. Thus, students playing in wargames estimated situations based on given scenarios, outlined courses of action after assessing situations, executed plans, and then absorbed honest critiques of their decisions. In the 1920s and 1930s at the Naval War College, students also received a primer in commandership against the backdrop of a Pacific naval campaign. The students who played the games, as well as the faculty members who designed and umpired these events, shaped and fed a shared mental model about the strategic, operational, and tactical challenges of fighting the Japanese in the coming war. Officers returning to Newport as faculty members brought with them recent operational experiences, including fleet experiments that shaped carrier aviation and informed the requirements of new capabilities.  

Beyond the Naval War College and the Naval Postgraduate School in Monterey, California, current U.S. PME students are not taught how to plan and develop wargames as part of their regular course work. At U.S. Marine Corps University, for instance, wargaming is taught during a six-week elective at Command and Staff College (if enough students express interest in the elective), but the course fails to relate how games are relevant to real-world war planning and critical U.S. defense processes such as capabilities development.

At the next-level PME institution, students of the Marine Corps War College (lieutenant colonels and commanders) participate in a wargame as part of the curriculum’s Joint Professional Military Education II (JPME II) requirement, but they are never taught how to plan, execute, and analyze a game themselves. Within the Air Force, the Air Force Materiel Command offers three-day introductory courses with curricula tailored to the needs of a client command or organization, but these courses fall short of the integral nature that wargaming fulfilled for the German Army, Japanese Navy, and U.S. Navy during the interwar years.

The Board of Strategy plots moves during a Naval War College wargaming session in the cabin of the USS Wyoming (BB-32). Such rigorous preparatory training during the interwar years. (U.S. Naval Institute Archive photo)

To yield substantive benefits, wargaming must be integrated into service PME starting with captain-level career courses. The first exposure should be at the rank of captain in order to give young leaders intensive, virtual decision-making experience before they assume company command. Company command is the appropriate time to introduce gaming to an officer’s development because his unit gets four times larger (a Marine rifle company has 182 personnel by table of organization, compared to 43 personnel in a Marine rifle platoon) and he must have the mental acuity and confidence to operate without constant supervision from superiors. Gaming gives leaders this experience.  

As an officer’s career progresses, the wargaming curriculum should teach students how to develop, plan, and execute wargames on a larger scale. At top-level schools, an officer should be expert at applying game insights into the vast U.S. military bureaucracy, feeding future-leaning commands and organizations within the supporting establishment that play a key role in developing future strategies, concepts, capabilities, and resource allocations. With its emphasis on decision-making and reflection on the implications of those decisions, wargaming provides a tool to foster imagination and intellectual growth inside and outside a formal schoolhouse setting. Teaching wargaming design to uniformed military members empowers them to create the intellectual venues themselves when they return to the fleet, flight line, or field – much like the officers of the German Army, Japanese Navy, and American Navy did during the interwar period.

Second, the U.S. military should more closely bind service-level wargaming, analysis, and live-force exercises to provide the intellectual and practical test beds to explore and develop new concepts, capabilities, and technologies to overcome unforeseen warfighting challenges. The games and exercises should be conducted as distinct events that are separated by weeks or months, unlike the infamous Millennium Challenge 2002 event, which attempted to synchronize a wargame, experiments, and exercises involving live forces around the world. 

Wargames, analysis, and exercises are complementary elements of a cycle of research that offered fresh approaches and shaped new capabilities during the interwar period. Wargaming provides an environment for players to make decisions and understand their implications without expending blood or treasure. Insights derived from games are generally qualitative in nature. Analysis uses mathematical tools – primarily computer-generated models in today’s military – in an attempt to duplicate the physical processes of combat. Insights derived from analysis are usually quantitative in Both wargames and analysis, however, are only abstractions of reality. Together, they can inform exercises that give real forces the opportunity to implement in the physical domain the new approaches and ideas suggested by wargames and analysis. (See Table 1, Comparison of Campaign Analyses and Wargames.)

Table 1. Attributes of campaign analyses and wargames.

U.S. Navy Commander Phillip Pournelle writes that each of the tools “suffer from their own biases, simplifications, and cognitive and epistemological shortcomings. When integrated judiciously, however, the cycle of research gives leaders at all levels critical facts, synthetic experiences, and opportunities to rehearse a range of events in their minds and in the Fleet or the field.” (See Table 2, Comparison of Exercises and Wargames.)

Table 2. Attributes of exercises and wargames.

The cycle of research has increased momentum at the Marine Corps Warfighting Laboratory’s (MCWL) Ellis Group, which hosts weekly wargames to examine emergent Marine warfighting challenges. The games serve as an incubator for concepts and capabilities under development. During a game in 2015, dozens of uniformed officers and civilian experts gathered around a large sandtable separated by a barrier. A young Marine infantry captain explained how he planned to land his company.  On the other side of the barrier, red cell members – retired field-grade officers and staff noncommissioned officers – determined how they would oppose the landing. On the group’s periphery, analysts recorded observations made by the participants. Scribes filled whiteboards with insights from the game, which they matched against the command’s prioritized list of warfighting challenges. U.S. Marine Corps Brigadier General Dale Alford, MCWL’s commanding general, adopted the weekly games after observing the Naval War College’s Halsey Groups use operations analysis and wargaming to examine naval warfighting challenges. “It was mostly about getting the right people involved and in the same room,” he said.

Third, wargaming leaders must ensure an accurate and intellectually honest representation of the enemy. Most games played by the Germans, Japanese, and Americans during the interwar period featured two sides: friendlies and adversaries playing against one another. Some of today’s large service-level games are one-sided, with friendly “blue” actions being played against pre-scripted enemy reactions or a control group attention divided between representing “red” and running the overall event. However, if war is “an act of force to compel our enemy to do our will,” as Carl von Clausewitz suggested in On War, these games must adequately portray the adversary’s will.  One-sided wargames lose the essence of the opposing will when the enemy’s actions are not represented by another human being seeking to win. Retired U.S. Marine Corps Lieutenant General Paul Van Riper, who previously served as director of Command and Staff College, required all Command and Staff College games to be two-sided affairs. “You need two free-thinking wills … within the bounds of the problem,” said Van Riper, who has consulted on many joint and service games since his retirement from active duty in 1997 and served as the red cell commander during the Millennium Challenge event.

This honest portrayal goes beyond using an expert versed on enemy (e.g., “red cell”) capabilities, limitations, and doctrine. During the Wehrmacht wargames before the invasion of France and the Low Countries, the red cell correctly suggested that French-led Allied Forces would be slow to respond to a German main effort thrust through the Ardennes – prompting planners to shift resources to the army group approaching from the forest. The red cell did not portray an idealized version of the French doctrinal response, which would likely have prompted German planners to shift resources to a different army group and resulted in a different course of action. From the Japanese wargames before the Battle of Midway, historians and professional gamers often cite the sinking – and revival – of two Japanese carriers as an admonition against biases, poor assumptions, and predetermined outcomes.

Fourth, future wargaming efforts should use different types of games for different purposes and desired outcomes. A greater variety of games can attack a problem from different perspectives. A larger number of games provides more opportunities to create fresh solutions. For a new, evolving subject, a wargame with more seminar discussion, less action-counteraction play, and fewer rules might be more appropriate in order to generate player insights and spur creativity. On a topic for which much is already known, a wargame with less seminar discussion, more action-counteraction play, and more rules based on hard data might be more suitable to refine players’ understanding of capabilities.

Back to the Future

The German Army, Japanese Navy, and U.S. Navy used wargaming to shed light on strategic, operational, and tactical uncertainty during the interwar period. In the German Army, wargaming formed the bedrock for the education of officers and provided opportunities for commanders and staffs to rehearse complicated operations such as the offensive against France and the Low Countries in 1940. For the Japanese Navy, planners utilized wargames to examine different ways to employ the Combined Fleet in the opening salvo of the Pacific campaign. The Germans successfully used red cells during their wargames to accurately and honestly portray French forces’ actions during the 1940 campaign, while the Japanese demonstrated the dangers of predetermined notions during wargames before the Battle of Midway. The U.S. Navy found wargaming to be an effective tool for educating officers as well, inculcating the practice among generations of officers who attended the Naval War College and fostering a shared mental model through hundreds of wargames that focused on a potential future war with Japan. Likewise, American naval officers also wargamed carrier aviation, discovering optimal ways to employ forces that massed firepower and extended the reach of the Pacific Fleet. These insights fed the cycle of research that allowed American naval officers to study, experiment, and develop new concepts and capabilities leading up to the Second World War.  

Interwar-period wargaming provided users with a chance to shed light on an opaque future. Although the threats are different, senior U.S. defense leaders face similar ambiguity now. The reassertion of Russia in world affairs, a militarily stronger China, and a multitude of powerful non-state actors have dramatically changed the strategic landscape. Fast-developing capabilities, nascent technologies, unmanned weapons platforms, 3D printing, and human-machine interfacing are among the potential factors of the next great conflict. With no cost in blood and minimal in treasure, wargames can empower U.S. military leaders to exert intellectual leadership and innovate to be better prepared for the future.

Major Jeff Wong, USMCR, is a Plans Officer at Headquarters, U.S. Marine Corps, Plans, Policies and Operations Department.  This series is adapted from his USMC Command and Staff College thesis, which finished second place in the 2016 Chairman of the Joint Chiefs of Staff Strategic Research Paper Competition.  The views expressed in this series are those of the author and do not reflect the official policy or position of the U.S. Marine Corps, the Department of Defense or the U.S. Government.  

1.  Commander Phillip Pournelle, USN (analyst at the Office of Net Assessment, Office of the Secretary of Defense), interview by Jeff Wong, September 24, 2015.

2.  As discussed previously, wargaming is different from COA Wargaming, which is a phase of the joint and services’ planning processes, e.g., the Military Decision-Making Process and Marine Corps Planning Process.

3. Colonel Matthew Caffrey, USAF (Retired) (wargame instructor at the Air Force Materiel Command), interview by Jeff Wong, October 15, 2015.

4. Gary Anderson and Dave Dilegge, “Six Rules for Wargaming: The Lessons of Millennium Challenge ’02,” War on the Rocks, November 11, 2015 (accessed April 1, 2016): http://warontherocks.com/2015/11/six-rules-for-wargaming-the-lessons-of-millennium-challenge-02/.

5. Philip Pournelle, “Preparing for War, Keeping the Peace,” Proceedings 140, no. 9 (Newport, RI: U.S. Naval Institute, September 2014), accessed October 15, 2015: http://www.usni.org/magazines/proceedings/2014-09/preparing-war-keeping-peace.

6. Peter Perla, The Art of Wargaming, 287.

7. Brigadier General Dale Alford, USMC (commanding general of the Marine Corps Warfighting Laboratory), interview by Jeff Wong, November 23, 2015.

8. Carl von Clausewitz, On War ed. and trans. Michael Howard and Peter Paret (Princeton, NJ: Princeton University Press, 1984), 75.

9. Lieutenant General Paul Van Riper, USMC (Retired) (faculty member at Marine Corps University), interview by Jeff Wong, February 2, 2016.

10. Pournelle, interview by Jeff Wong, September 24, 2015.

Featured Image: NEWPORT, R.I. (May 5, 2017) U.S. Naval War College (NWC) Naval Staff College students participate in a capstone wargame. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jess Lewis/released)

Announcing Winners of the Commodore John Barry Maritime Security Scholarship

By Roger Misso

It has been an exciting scholarship judging season at CIMSEC! We were lucky to have a slew of essay submissions and a great panel of judges for our Commodore John Barry Maritime Security Scholarship Contest. Alas, we had to narrow down our choices…

…and the winners are:
FIRST PLACE: Patrick C. Lanham, Senior, Cocoa Beach Jr./Sr. High School (Florida)
SECOND PLACE: Christopher L. Rielage, Senior, Percival Blakeney Academy (Hawaii)
THIRD PLACE: Matthew Lidz, Senior, Bernards Township School District (New Jersey)
Congratulations to the winners! In the coming days and weeks, we will publish their essays and honorable mentions here at CIMSEC.

We are exceptionally proud to have had such a geographically diverse pool of submissions. The commitment to and knowledge of the great maritime issues among our nation’s high schoolers is strong, and bodes well for both the United States and the world in the future. 

We invite all authors—of any age or grade level—to submit their best content on maritime security issues to CIMSEC. We look forward to reading!

Roger Misso is the Vice President of CIMSEC.

Featured Image: Pen and paper (A. Birkan ÇAĞHAN/Flickr)

Russian Warships in Latvian Exclusive Economic Zone: Confrontational, not Unlawful

By Sean Fahey

The past months have seen a significant increase in Russian military activity across Europe, including the Baltic Sea. Last month, Admiral Michelle Howard, commander of U.S. Naval Forces Europe and Africa, and commander of NATO’s Allied Joint Force Command Naples, described the scope of Russian military activity in Europe as “precedential,” exceeding even Cold War era levels.1 The Baltic Sea, in particular, has become increasingly congested with Russian military forces operating in the region, leading to tense encounters in the air and on the water. Most notably, last April, two Russian Sukhoi SU-24 attack aircraft made repeated low-altitude passes over the USS Donald Cook, a guided missile destroyer operating in international waters in the Baltic, with several of the passes resembling “simulated attack” runs.2 Russia also recently deployed Iskander missiles, a “nuclear-capable” system with a range of over 400 miles, to Kaliningrad, the Russian enclave situated between Poland and Lithuania,3 and, last month, conducted cruise missile drills in the Baltic Sea.4 This summer, Russia is expected to conduct its “Zapad” (or “West”) Exercise in Kaliningrad and Belarus, with estimated Russian participation numbering between 70,000 and 100,000 troops.5 Some of these incidents are alarming in and of themselves; others, though seemingly routine, may be cause for concern when viewed in light of other regional Russian military activity. Context matters.

The most recent Russian military activity to draw attention in the region was the transit of three Russian warships through the Exclusive Economic Zone (EEZ) of Latvia, a NATO member state.6 The three warships—the  corvettes Liven 551, Serpukhov 603 and Morshansk 824—were sighted four miles outside Latvia’s territorial sea, or sixteen miles from the Latvian coast. The warships were scheduled to participate in a naval parade to commemorate “Victory Day,” celebrating the end of World War II, but were redeployed prior to the parade, quite possibly in response to the destroyer USS Carney’s arrival into the Baltic Sea.7 

In isolation, the transit of the Russian vessels through the Latvian exclusive economic zone is relatively benign. In the context of Russia’s military activity in the Baltic over the past year, however, the transit can appropriately be described as “aggressive,” even “confrontational.” That said, the transit was not unlawful under international law, and this point cannot be lost in the discussion. The United States and its allies rely on the navigational freedoms protected under international law as much as the Russians, arguably more so. Promoting these freedoms is essential to ensure U.S. maritime mobility.

Under international law, coastal state sovereignty ends at the outer limit of the territorial sea and the airspace above it,8 and even this sovereignty is subject to certain navigational rights, such as the rights of “innocent passage” and “transit passage.”9 Vessels and aircraft, to include military vessels and aircraft, operating seaward of a state’s territorial sea enjoy the freedoms of navigation and overflight and other internationally lawful uses of the sea related to those freedoms.10 The U.S. position is that for military vessels, this freedom of navigation includes being able to conduct certain military activities in a state’s EEZ, such as military maneuvers, flight operations, military exercises, surveillance and intelligence gathering, and weapons testing and firing.11 

Not all nations share the U.S. view on the scope of permissible military activities in the EEZ, and instead advocate a legally and practicably untenable interpretation. This interpretation is based, in part, on an incorrect reading of Article 88 of the UN Convention on the Law of the Sea (UNCLOS), which applies in the EEZ through Article 58(2).  This Article states that the high seas shall be reserved “for peaceful purposes.”12 The “peaceful purposes” language in UNCLOS, however, does not prohibit military activities in the EEZ, only those activities inconsistent with Article 2(4) of the UN Charter.13 Nevertheless, even under a restrictive interpretation, warships transiting through a coastal state’s EEZ—even with the intent to locate and surveil a foreign warship on the high seas—would still be permissible under international law. In fact, had the three Russian warships been transiting through the Latvian territorial sea (within twelve nautical miles of the coast), and even done so unannounced, this too would have been permissible under international law, so long as the vessels were properly exercising their navigational right of “innocent passage.”14

Military activities, both planned and unplanned, will continue to be conducted in the Baltic, by both Russia and NATO and its allies, for the foreseeable future. That is not a criticism; it is a statement of fact. While it is certainly appropriate—strategically critical even—to criticize and protest unwelcome, aggressive and confrontational military acts, care must be taken not to mischaracterize the lawfulness of the acts under international law, either directly or by implication. To be optimally effective in the Baltic region, NATO forces, to include those of the United States, will rely on the freedoms of navigation and overflight preserved under the law of the sea. The lawful exercise of those freedoms, particularly as it relates to military activities, must be preserved, even when their application is unpopular.

Commander Sean Fahey, United States Coast Guard, is currently assigned as the Associate Director for the Law of Maritime Operations at the Stockton Center for the Study of International Law at the U.S Naval War College in Newport, Rhode Island. He is also the Editor-in-Chief of International Law Studies. He can be reached at Sean.Fahey@usnwc.edu

The views and opinions expressed here are presented in a personal and unofficial capacity. They are not to be construed as official policy or reflecting the views of the United States Coast Guard or any other U.S. government agency. 

Footnotes

1. Andrea Shalal, Russian Naval Activity in Europe Exceeds Cold War Levels: U.S. Admiral, Reuters (Apr. 9, 2017, 11:09 AM), http://www.reuters.com/article/us-usa-russia-military-idUSKBN17B0O8.

2. U.S. Department of Defense, Navy Ship Encounters Aggressive Russian Aircraft in Baltic Sea, Apr. 13, 2016, https://www.defense.gov/News/Article/Article/720536/navy-ship-encounters-aggressive-russian-aircraft-in-baltic-sea/

3. Russia Deploys Nuclear-Capable missiles in Kaliningrad, BBC News (Oct. 9, 2016), http://www.bbc.com/news/world-europe-37597075.

4. Damien Sharkov, Russia Begins Submarine Cruise Missile Drills in Baltic Sea, Newsweek (Apr. 10, 2017, 10:30 AM), http://www.newsweek.com/russian-baltic-sea-fleet-practices-submarine-cruise-missile-fire-581524

5. Thomas Gibbons-Neff, U.S. Shifting Forces to Monitor Large Russian Military Exercises, Officials Say, Washington Post (May 10, 2017), https://www.washingtonpost.com/news/checkpoint/wp/2017/05/10/u-s-shifting-forces-to-monitor-large-russian-military-exercises-officials-say/?utm_term=.580e19108096.

6. Caroline Mortimer, Russian Warships Spotted Just Outside Latvia’s Territorial Waters in Latest Show of Strength, Independent (May 9, 2017), http://www.independent.co.uk/news/world/europe/russia-baltic-agression-navy-latvia-warships-victory-day-a7725261.html;Damien Sharkov, Latvia Spots Three Russian Warships off Sea Border, Newsweek (May 8, 2017, 12:18 PM), http://www.newsweek.com/latvia-spots-three-russian-ships-sea-border-596219; Will Stewart, Putin Sends Three Warships to Latvian Waters in the Baltic Sea in Latest challenge to NATO, Daily Mail (May 8, 2017), http://www.dailymail.co.uk/news/article-4485604/Putin-sends-ships-Latvian-waters-challenge-NATO.html; Doug G. Ware, Russian Warships Spotted in Baltic NATO Waters, Latvia Says, UPI (May 8, 2017, 7:53 PM), http://www.upi.com/Top_News/World-News/2017/05/08/Russian-warships-spotted-in-Baltic-NATO-waters-Latvia-says/9341494285894/

7. Damien Sharkov, Latvia Spots Three Russian Warships off Sea Border, Newsweek (May 8, 2017, 12:18 PM).

8. United Nations Convention on the Law of the Sea, Dec. 10, 1982, 1833 U.N.T.S. 397, arts. 2-5. (Article 2(1) reads: “The sovereignty of a coastal State extends, beyond its land territory and internal waters…to an adjacent belt of sea, described as the territorial sea.” Article 2(1) reads: “This sovereignty extends to the air space above the territorial sea as well as to its bed and subsoil.”) Every State has the right to establish the breadth of its territorial sea up to twelve nautical miles from its baseline, normally the low-water line along its coast. (arts. 3-5).

9. Id., arts. 17-19, 37, 38 and 45.

10. United Nations Convention of the Law of the Sea, supra note 8, arts. 58 and 87. Though the United States has not ratified the United Nations Convention on the Law of the Sea, the United States considers those provisions relating to the freedoms of navigation and overflight as memorializing long-standing customary international law. United States Oceans Policy, Statement by the President, March 10, 1983 (“…the United States is prepared to accept and act in accordance with the balance of interests relating to traditional uses of the oceans—such as navigation and overflight. In this respect, the United States will recognize the rights of other states in the waters off their coasts, as reflected in the Convention, so long as the rights and freedoms of the United States and others under international law are recognized by such coastal states.”) https://www.state.gov/documents/organization/143224.pdf.

11. U.S. Navy, U.S. Marine Corps & U.S. Coast Guard, NWP 1-14M/MCWP 5-12/COMDTPUB P5800.7A, The Commander’s Handbook on the Law of Naval Operations ¶ 2.6.3 (2007).

12. United Nations Convention on the Law of the Sea, supra note 8, Articles 58 and 88; See James Kraska, Military Operations, in The Oxford handbook of the Law of the Sea884-85 (Donald R. Rothwell, Alex G. Oude Elferink, Karen N. Scott and Tim Stephens, eds., 2015).

13. Kraska, supra note 12, at 884-85. Article 2(4) of the UN Charter reads: “All Members shall refrain in their international relations from the threat or use of force against the territorial integrity or political independence of any state, or in any other manner inconsistent with the Purposes of the United Nations.” http://www.un.org/en/sections/un-charter/chapter-i/ .

14. United Nations Convention on the Law of the Sea, supra note 8, arts. 17-19.

Featured Image: Russian Navy corvettes (East2West news)

Interwar-Period Gaming Today for Conflicts Tomorrow: Press ‘Start’ to Play, Pt. 2

By Major Jeff Wong, USMCR

Interwar-Period Case Studies – Germany, Japan, and the United States

By the beginning of the interwar years, wargaming had gained acceptance among military leaders in Germany, Japan, and the United States. For the German military, Helmuth von Moltke used wargames to train and educate officers at the Kriegsakademie during his tenure as chief of the Prussian and German General Staff from 1857-88. Generations of German Army officers accepted gaming as an essential part of training, educating, and developing leaders, and they continued the practice through the early years of the Second World War. In the late 19th century, German officers passed wargaming to their Japanese counterparts, who expanded the use of gaming for campaign planning and decision-making processes. Wargaming eventually became part of the regular curriculum at the Japanese Naval Staff College, and Japanese naval leaders attributed their success during the 1904-05 Russo-Japanese War to insights generated by these games. Students and faculty used wargames to test new ideas about tactical maneuvers, night attacks, fleet formations, principles of engagement, and supporting forces. Unlike the Germans, Japanese interwar-period games gained a deterministic quality, with officers using game insights as evidence to support courses of action that leaders had already favored. In the United States, a Navy lieutenant named William McCarty Little introduced gaming to the Naval War College in Newport during a series of lectures in 1887. The faculty experimented with the new technique in the ensuing years and incorporated it as a regular educational tool in 1893.  During his interwar-period tenure as the president of the Naval War College, Admiral William Sims emphasized the need to test students’ decision-making abilities through the use of wargames: officers with otherwise strong reputations exposed their “lack of knowledge…of the proper tactics and strategy” in the war college game rooms in Newport.

This is the second of a three-part series examining interwar-period gaming. The first part defined wargaming, discussed its potential utility and pitfalls, and differentiated it from other military analytic tools.

Lessons from Germany: Kriegsakademie, Von Seeckt, and the Shared Mental Model

Wargaming realized its potential as a tool for learning in interwar Germany for several reasons. The PME system embraced gaming as a training and educational tool that encouraged introspection about decision-making and fostered subordinate initiative and adaptability. Senior benefactors valued wargames and the insights they generated. Wargames also contributed to a shared mental model about the strategic and operational dilemmas that the country faced upon the outbreak of war. The cultural indoctrination of wargaming expanded in German PME institutions, where officers played games to reinforce learning from lectures and seminars. Senior officers led students on staff rides that integrated elements of wargaming, forcing students to confront operational problems and formulate solutions. They conducted these staff rides and wargames in the regions of Central Europe that would become battlefields by 1939-40, including the areas adjacent to France and the Low Countries in the Second World War’s western theater and regions facing Poland and Czechoslovakia in the east. In order to graduate, every officer who attended the Kriegsakademie learned how to plan a wargame, execute the event, and apply insights toward future planning. After graduating and arriving at their parent units, officers found wargames to be an integral part of their continued maturation as military professionals. Every Wehrmacht unit from battalion or squadron upward conducted games as an intellectual substitute for live-force exercises, which had diminished in frequency due to funding shortages and troop-number restrictions imposed by the Treaty of Versailles at the end of the First World War.

Senior benefactors in the German Army reinforced the importance of gaming. The post-war restrictions forced the newly appointed chief of the Reichswehr, Hans von Seeckt, to find different ways of ensuring the army adapted after The Great War so hard-won lessons could help inform how they would fight the next great conflict – an inevitability in the eyes of many German officers. In addition to ordering a sweeping review of the German military’s performance during the First World War, the German military chief turned to wargaming to prepare the next generation of officers.

Von Seeckt, an adherent of maneuver warfare, believed that German officers needed to understand the theoretical aspects of warfare to be prepared for a dynamic future battlefield. Wargaming became an essential element of that understanding. He expanded the term “wargame” to include other activities that resemble the modern-day TEWT and TTX, planning exercises (akin to the theater campaign planning central to the capstone “Nine Innings” exercise at the U.S. Marine Corps Command and Staff College), command-post exercises, and terrain discussions. By the end of von Seeckt’s tenure as chief of the general staff in 1926, Reichswehr officers examined Germany’s perpetual strategic dilemma – ensconced in Central Europe surrounded by potential adversaries – through wargames, with leaders at all levels immersing themselves in the details of existing plans, likely enemy reactions to German offensives, and the challenges of the physical terrain across Europe.

Other senior leaders who played wargames in this officer development system eventually used games to plan the opening stages of the Second World War. General Franz Halder, chief of the Army General Staff, commissioned dozens of wargames to examine different options for invading France and the Low Countries in 1940. General Ludwig Beck, chief of the German General Staff from 1935 through 1938, also employed games in his 1936 effort to prepare a new manual of modern operations for the entire army. After he and his advisers had decided on the principles they deemed most important in the new conditions of warfare of their time, they called on “seasoned officers” to test those principles using wargames. In the air, military aviation pioneer Helmuth Wilberg shaped future Luftwaffe operational employment through wargames during his rigorous critique of German air doctrine following the First World War. On the sea, German submarine force chief Karl Doenitz, a future grand admiral, utilized games to explore the employment of U-boats. Doenitz’s games generated new ideas such as wolfpack tactics and suggested that a three-hundred submarine fleet would be necessary to neutralize Allied merchant shipping in the Atlantic.

These wargames exposed strategic and operational dilemmas that fed a shared mental model for Wehrmacht leaders and their subordinate commanders. In this context, mental models comprise the collective tools, products, processes, and experiences that players use to make sense of the world. Games conducted prior to the invasion of France examined various iterations of Plan Yellow, the campaign to invade France and the Low Countries, and contributed to the German military’s shared mental model for how they would fight the next war. Among the numerous versions of Plan Yellow, the German Army General Staff settled on a daring version (some called it “reckless”) that feigned an attack on Belgium and the Netherlands. The feint would distract Allied Forces from the campaign’s main effort – an offensive through the Ardennes Forest that pushed German tank divisions across the Meuse River toward the English Channel, cutting off Allied lines of communication back to France. The wargames featured the services of Lieutenant Colonel Ulrich Liss, an expert on Western military doctrine who role-played as the commander of Allied Forces, French General Maurice Gamelin. Liss’ red cell accurately portrayed the likely Allied reaction – a slow response to a German main effort thrust through the Ardennes. “Liss had come to a view similar to that articulated by Hitler, namely that ‘to operate and to act quickly … does not come easily either to the systematic French or to the ponderous English,’” wrote Ernest May. Liss’ assessment during the games prompted Halder to eventually assign Schwerpunkt, or focus of effort, to Army Group A, which would push through the Ardennes. Colonel-General Gerd Von Rundstedt, commander of Group A, lamented that “the campaign could never be won.” However, the Germans did win, thanks partly to an insight generated by an accurate representation of the enemy as part of wargaming for the campaign. The Allied Forces failed to act quickly enough on the German deception until Group A’s divisions had crossed the Meuse on their way toward the English Channel.

Evolution of Plan Yellow. (Wikimedia Commons)

In the spirit of Auftragstaktik, gaming helped establish the environment that fostered initiative among Wehrmacht subordinate commanders. Officers constantly examined and questioned the assumptions behind their own decisions in wargames, which fostered an environment that encouraged initiative and field innovation. Some subordinate leaders became less afraid to deviate from their original tasks and adjust to evolving situations during combat in order to meet their commander’s intent. During the offensive against France and the Low Countries in May 1940, after General Heinz Guderian’s Panzer Corps crossed the Meuse River at Sedan, he chose to press the attack west with all available forces and drive toward the English Channel, rather than make the doctrinally sound decision of slowing down and strengthening his corps’ bridgehead to the south. In another instance during the campaign, General Erwin Rommel’s Seventh Panzer Division neared the far end of the “extended Maginot Line” at the French-Belgian border – far ahead of his adjacent units – and lost radio communications with his corps headquarters. Rommel’s superiors never issued guidance for this stage of the operation because they did not predict their advance would proceed as quickly and successfully as it did. Like Guderian, Rommel pressed ahead with the assault and pushed his panzers west until he ran short of ammunition and fuel at Le Cateau. “German generals, even German colonels and majors, certainly felt freer to try new approaches and tactics than did their counterparts in the French army or (British forces),” wrote May.

In the Wehrmacht, commanders used wargames to assess their subordinates’ strengths and weaknesses under stress. They also used games to foster trust and understanding between senior and junior officers through teaching moments in the context of the game scenario. These games became “the best way for commanders to make known to subordinates their views on various aspects of warfare,” writes Dr. Milan Vego, a professor at the U.S. Naval War College. “Wargames were an important means for the ‘spiritual’ preparation for war and for shaping unified tactical and strategic views.” Through gaming, leaders established a climate that allowed for mistakes to be studied and encouraged subordinate commanders to adapt their plans to changing realities in battle. The Germans also utilized wargaming to examine evolving principles within the institution about combined arms, armor and maneuver, and air doctrine in order to inform capabilities development and national resourcing decisions that influenced, for example, the manufacture of close-air support platforms over long-range strategic bombers. By the mid- to late 1930s, Germany diverted limited resources to interdiction and tactical support aircraft because of the risk to ground assault upon the outbreak of war in Europe.

In the years after the First World War, wargaming remained a valuable training tool. During games, commanders stressed the importance of a proper commander’s estimate of the situation using imperfect information, logical decision-making, orders writing, and coherent communication of those orders. A game director would conduct a thorough after-action review with participants to discuss what drove commanders’ decisions during the game and offer alternate solutions. After the group adjourned, the game director worked with senior wargame participants to draft reports that identified issues for subsequent exploration in follow-on experiments, live-force exercises, and other wargames.

To complement insights gained from gaming, senior officers also used “operational mission” (Operativ Aufgaben) games to examine future hypothetical war scenarios. Led by senior officers within the Troop Office (or Truppenamtreise, the Reichswehr-era “general staff” entity), up to 300 officers from group commands, divisions, and the schoolhouses collaborated on a potential solution that was written as a study and submitted to the Truppenamtreise for review. In 1931, one such exercise examined a war with France and Czechoslovakia. Two others in 1932 outlined a campaign against Poland.  

German interwar-years gaming enjoyed high-level support, cultural acceptance, and a shared mental model about the next Great War. Training and education that used wargames at the Kriegsakademie laid the foundation for officers to continue the practice at their units later in their careers. Believers such as Von Seeckt, Halder, and Beck integrated wargaming into strategic decision-making for the institution. In the supporting establishment, senior officers continued to wargame institutional issues such as doctrine, resourcing, and manufacturing of capabilities to fulfill projected future Wehrmacht requirements for the next war. German officers utilized wargames to first explore hypothetical strategic and operational dilemmas, then used lessons-learned to better understand campaign plans that served as the opening salvo of Germany’s Blitzkrieg in the European theater. Gaming fostered an environment that encouraged subordinate leaders to adapt, innovate, and develop creative solutions.

Lessons from Japan: Ugaki, Midway, and the Carriers That Wouldn’t Sink

The German example demonstrates wargaming’s promise as a learning and rehearsal tool, but lessons from the Japanese experience highlight potential pitfalls when the tool is misapplied, misinterpreted, or abused to support a predetermined outcome. The Japanese example highlights the benefits of integrating wargaming into the professional development of officers in the schoolhouse, but it also illustrates the potential dangers of unrealistic play and obfuscation of game outcomes.

Japanese planners examining the Pacific theater determined that a bold campaign that relied upon speed, surprise, and near-perfect synchronization would be necessary against American, British, and Dutch forces in Southeast Asia and the Western Pacific to establish strategic conditions favorable to the Japanese at the onset of hostilities. Games played a crucial role in supporting Japanese assumptions about the Pacific campaign. Admiral Isoroku Yamamoto, commander-in-chief of the Combined Fleet, directed wargames to support planning for the pivotal campaigns at Pearl Harbor in 1941 and Midway Island in 1942. By the beginning of the interwar period, officers learned gaming at the Japanese War College and Naval War College, just as German military officers did at the Kriegsakademie. Japanese naval officers first wargamed an attack on Pearl Harbor in 1927, when carriers and carrier-aviation capabilities were in their infancy. During these games, two Japanese aircraft carriers (the only ones available in the fleet at the time) supported by an advance guard of submarines, destroyers, and cruisers inflicted only minimal damage on the U.S. Pacific Fleet. Observers criticized the Japanese naval force commander’s decision to attack Pearl Harbor for being rash. Japanese officers continued to wargame to support planning as the army expanded operations into Manchuria and China, and planners intensified the practice starting in 1937 when they started shaping a campaign to defeat British forces in the South China Sea.

Wargames played an integral part of Japanese war planning, with the Navy hosting a series of games prior to the opening campaigns in the Pacific theater. These games included a theater-level wargame that examined the Army and Navy’s opening campaigns in the Aleutian Islands, Pearl Harbor, and the Southwest Pacific, as well as operational- and tactical-level wargames that focused on specific parts of the operations. Fleet commanders and selected staffers participated in several secret games held in fall 1941 in preparation for the Pearl Harbor attack, as well as a series of games played in early 1942 before Japanese attacks across the Philippines, the Aleutian Islands, Guam, the Dutch East Indies, Singapore, and Hong Kong that ultimately stymied U.S. and other allied forces across the region.

Planners used wargames conducted in the fall of 1941 at the Japanese War College to analyze the effectiveness of a surprise attack on the U.S. Pacific Fleet in Pearl Harbor, as well as allow commanders and planners to rehearse the operation. For the Pearl Harbor wargames, Yamamoto handpicked his participants, which included fleet commanders and their staff. Yamamoto wanted the wargames to generate insights about three critical decisions as part of the attack. First, he wanted to determine the feasibility of the operation. Second, Yamamoto wanted to figure out if the fleet could achieve surprise in the attack. Third, he wanted to examine an optimal route for the approach of the carrier strike group toward Hawaii. Commander Minoru Genda, a trusted confidant of Yamamoto who served as an air officer of the carrier task force that would attack Pearl Harbor, said that the Pearl Harbor wargames “clarified our problem and gave us a new sense of direction and purpose. After they were over, all elements of the Japanese Navy went to work as never before, because time was running out.”

This picture released by the US Navy shows a Japanese mock-up used to plan the attack on Pearl Harbor. Admiral Isoruku Yamamoto, Japanese naval attache in Washington, conceived the plan for the attack on Pearl Harbor in January 1941. The Japanese War College worked out the attack from this model, and in September 1941, Japanese carriers and their planes practiced bombing on an obscure island of Japan. Yamamoto had special fins placed on torpedos for the shallow waters of Pearl Harbor. (Official US Navy Photo)

Japanese wargames also had vocal critics. Genda’s direct superior and the commander of the Pearl Harbor strike force, Admiral Chuichi Nagumo, expressed skepticism about the games’ insights about likely Japanese success against the American Fleet. Yamamoto favored a bold attack against the U.S. Pacific Fleet and overruled Nagumo’s chief concern – that massing six aircraft carriers for the Pearl Harbor task force put a significant amount of overall Japanese naval combat power at risk. Vice Admiral Hansaku Yoshioka, among the participants of the Pearl Harbor games, decried the inflation of Japanese capabilities, underestimation of American forces, and umpire decisions that were slanted in favor of the Japanese. The games “epitomized the Japanese penchant for short-sighted, self-indulgent thinking,” Yoshioka told American interrogators following the war. World War II scholars believe this “self-indulgence” came back to haunt the Japanese during wargames before the Battle of Midway, when the Midway game series director, Admiral Matome Ugaki, overturned umpires’ rulings about the sinking of two Japanese carriers by American land-based bombers. Ugaki reduced the number of sinkings to one carrier and allowed the other to participate in the next part of the game – invasions of New Caledonia and Fiji Island.  

Wargaming professionals often cite Ugaki’s umpiring during the Midway wargame as a prime example of a good wargame undermined by leaders with a deterministic bias, but the reality is that wargaming has limitations. A wargame is a good tool to examine decision-making, establish principles, develop insights, and recommend areas for further study. It is not a good tool for predicting the future or generating hard data. In The Art of Wargaming, Dr. Peter Perla reasons that while the Japanese Midway games were “almost certainly biased,” the point that is often overlooked is that the game “raised the crucial issue of the possibility of an ambush from the north; the operators ignored the warning, a warning reiterated by the oft-maligned Ugaki.” This fact suggests that changing the umpires’ ruling of the effectiveness of land-based bomber attack was not necessarily willful ignorance, since B-17s had attacked the Japanese carrier task force on several occasions and failed to score a single hit. Perla writes, “Ignoring or changing the results of a few die rolls did not constitute the failure of Japanese wargaming in the case of Midway; ignoring the questions and issues raised by the play did.” In this case, the wargame generated an insight that key leaders of the actual Midway campaign overlooked. Other Japanese planners believed the principal failure of the game was the “uncharacteristic” play of Captain Chiaki Matsuda, the Japanese officer who role-played as the American commander. In post-war interviews, Genda suggested that Matsuda mirror-imaged Japanese behavior onto the American fleet when it did not sortie for a decisive battle. “His (non-American) conduct of the wargames might have given us the wrong impression of American thinking,” Genda told interrogators.

Much like their German counterparts, Japanese planners during the interwar period integrated wargames into campaign planning. However, the primary difference appeared to be how the game’s sponsors and stakeholders interpreted the game outputs. In the Midway games, biases, poor assumptions, and preconceived notions caused analysts to overlook critical insights and misinterpret gameplay. Like the German wargame from the 1940 France campaign, which was notable for its honest portrayal of the Allied commander, Japanese wargames also show the importance of accurate, balanced “Red” play:  the game must provide a correct picture of an adversary’s capabilities and limitations, then honestly portray how the enemy would fight in a given situation and environment.

Lessons from America: Newport, Carrier Aviation, and the Pacific Campaign

Nimitz understood the challenges of a war in the Pacific thanks to his experiences as a student in the game rooms of the Naval War College. So had Ernest King, William Halsey, and Raymond Spruance – future admirals who commanded task forces, groups, and numbered fleets in the Pacific against Japan. In the two decades between the world wars, U.S. Navy officers cycling between the Naval War College, the operating forces, and influential supporting-establishment institutions generated a shared mental model that focused on the challenges of an impending Pacific campaign against Japan. With the specter of another global conflict on the horizon, they participated in wargames, studies, and exercises in the 1920s and 1930s to explore the wide array of conceptual, operational, and tactical challenges that the bloody stalemate of First World War exposed.  

The Naval War College is the most well-known illustration for American military gaming between the First and Second World Wars. Newport fully embraced wargaming by integrating it into officer PME curricula as the Germans did at the Kriegsakademie. The Newport wargames helped bolster student and instructor understanding about the challenges of operating in the Pacific against the Japanese, and informed studies and exercises for emerging capabilities such as naval aviation, which proved pivotal during the Second World War.  

The Naval War College worked with the Navy’s General Board on future planning scenarios based on various competitors and capabilities. Officials assigned each scenario a color, including Plan Orange for a war with Japan, which formed the basis of many of the games played by students in Newport. Like other Naval War College students, Nimitz wargamed and studied these operational dilemmas during the 1922-23 academic year. In his thesis, Nimitz described the need for seizing advanced bases or developing an at-sea refueling and replenishment capability “to maintain even a limited degree of mobility” against the Japanese. “To bring such a war to a successful conclusion BLUE must either destroy ORANGE military and naval forces or effect a complete isolation of ORANGE country by cutting all communication with the outside world,” wrote Nimitz, referring to the color code-names for the United States and Japan, respectively. “It is quite possible that ORANGE resistance will cease when isolation is complete and before steps to reduce military strength on ORANGE soil are necessary. In either case the operations will require a series of bases westward of Oahu, and will require BLUE Fleet to advance westward with an enormous train, in order to be prepared to seize and establish bases enroute.” Thus, original conceptions of the Pacific campaign featuring the Pacific Fleet’s advance along extended sea lines of communication gave way to an island-hopping approach that allowed American forces to establish advance bases from which to launch air attacks against the Japanese home islands.

At the Naval War College, wargaming enjoyed a powerful benefactor in Admiral William Sims, who commanded U.S. Naval Forces in Europe during the First World War and began a second stint as president of the Naval War College in 1919. He possessed recent combat experience, knowledge of wargaming from his first term as the college’s president, and a sense of urgency to provide future leaders with more opportunities to test their combat decision-making skills and inform future naval innovation. Sims regularly highlighted gaming’s role in a naval officer’s professional development:

“The principles of wargames constitute the backbone of our profession. … In no other way can this training be had except by assembling about a game board a large body of experienced officers divided into two groups and ‘fighting’ two great modern fleets against each other – not once, or a few times, but continually until the application of the correct principles becomes as rapid and as automatic as the plays of an expert football team.”

The War Plans Division of the U.S. War Department gamed elements of American mobilization plans prior to the start of the Second World War, but the national PME institutions embraced gaming as an analytical tool, and none more enthusiastically as the Naval War College. Of more than 300 wargames conducted in Newport during the interwar period, about half focused on campaigns and tactics while the other half gamed theater-wide strategy. Among approximately 150 strategy games, all but 9 explored a possible war with Japan.

Admiral Chester W. Nimitz, USN, Commander in Chief Pacific Fleet and Pacific Ocean Areas (standing) confers with (from left to right) General Douglas MacArthur, President Franklin D. Roosevelt and Admiral William D. Leahy concerning future moves in the war against Japan, during the President’s visit to Hawaii, 26 July-10 August 1944. (Official U.S. Navy Photograph) 

During games, students prepared plans based on a given scenario. Using their plans as a guide, players manipulated miniature ships on large maps depicting oceans of the world. Participants and umpires consulted charts and tables to determine game-move outcomes based on desired operational and tactical actions. During some games, students playing “Blue” – the United States – prepared and executed plans against classmates who attempted to mimic the doctrine and capabilities of the adversary – eventually Japan. In some cases, game directors ordered the players to switch sides and execute the plans prepared by their opponents. Tactical games proved useful in understanding and testing doctrines for ship movements, particularly the employment of carriers and their supporting vessels.  

The college worked closely with planners at the Office of the Chief of Naval Operations (OPNAV) to incorporate elements of Plan Orange into the wargames. College officials sent game insights to OPNAV, which integrated them into the design of the fleet problems. The fleet tested the ideas generated by the wargames during the exercises, the results of which planners sent back to Newport to inform subsequent wargames. “Thus, ideas developed or problems encountered on the game floor were often examined during the fleet problems and vice versa,” wrote Alfred Nofi. For example, during Fleet Problem VII in 1927, war college students played a scenario identical to one being used by naval, air, and ground forces exercising in Rhode Island Sound and adjacent coastal areas.

The relationship between Newport’s wargames and subsequent analyses and exercises proved particularly valuable for the maturation of carrier aviation. In the 1920s, carrier aviation concept development began at the war college, where students and faculty used games to study existing and possible doctrine for fleet employment. The fleet took inferences drawn from the games and operationalized them in maneuvers and mock battles during the fleet problems. Analysts provided an honest evaluation of the exercise results back to the technical bureaus (particularly the Bureau of Aeronautics) and the war college, and the college refined subsequent wargames to reflect insights generated by the exercises. This feedback loop contributed to the realism and creativity of game play at Newport and ultimately led to conclusions about the massing of aircraft for strikes and the need for a coherent air defense plan that integrated anti-air artillery and defensive interceptors during the Second World War.  

It is important to note that the wargames did not reveal the exact force structure, concepts, capabilities, tactics, techniques, and procedures that the U.S. Navy used to defeat Japan. Instead, the games gave American naval officers the analytic space to think and explore those issues. As the Pacific war proceeded, the U.S. Navy adjusted well to the changing realities of the conflict. John Kuehn wrote that the type of navy that America needed “had already been discussed and thought about extensively during the hearings of the General Board, in the classrooms at the Naval War College, at sea, and in the planning cells of OPNAV’s War Plans Division… Applying existing strategic, operational, and tactical solutions and then adjusting them to the realities of war came easier to Navy officers because of their focus over two decades on precisely the strategy and materiel requirements that a Pacific War without preexisting bases demanded.”

For the Americans, wargames allowed planners to explore evolving concepts and shape capabilities, as well as understand the operational challenges of the impending Pacific campaign. To develop new capabilities, wargames supported a cycle of research that informed analyses and live-force exercises in a continual feedback loop. This process reinforced realism in subsequent games and exercises, and a well-informed officer corps that tested and evaluated both types of evolutions. To develop a better understanding of Plan Orange, the Naval War College served as an incubator for creative ideas on how to overcome operational challenges in the Pacific. Through game play, officers learned how to fight against the Japanese, as well as how the Japanese fought. Students who cycled through the game floor at Newport developed a shared mental model that they carried with them to the fleet and eventually to war.

In part three, we will conclude this series by identifying best wargaming practices that can be applied to today’s U.S. defense establishment in order to prepare for future conflicts.

Major Jeff Wong, USMCR, is a Plans Officer at Headquarters, U.S. Marine Corps, Plans, Policies and Operations Department.  This series is adapted from his USMC Command and Staff College thesis, which finished second place in the 2016 Chairman of the Joint Chiefs of Staff Strategic Research Paper Competition.  The views expressed in this series are those of the author and do not reflect the official policy or position of the U.S. Marine Corps, the Department of Defense or the U.S. Government.  

Endnotes

1. Milan Vego, “German War Gaming,” Naval War College Review 65 no. 4 (Newport, RI: U.S. Naval War College, Autumn 2012), 110.

2. Francis J. McHugh, Fundamentals of War Gaming (Newport, RI: U.S. Naval War College, 1961), 39.

3. David C. Evans and Mark R. Peattie, Kaigun: Strategy, Tactics, and Technology in the Imperial Japanese Navy, 1887-1941 (Annapolis, MD: Naval Institute Press, 2012), 73.

4. McHugh, Fundamentals of War Gaming, 57.

5. Eric J. Madonia, “Preparing Navy Officers for Leadership at the Operational Level of War,” paper for the Naval War College (Newport, RI: U.S. Naval War College, March 5, 2010), 8.

6. Vego, 110-111.

7. Rudolf Hofman, “German Army War Games,” Art of War Colloquium (Carlisle Barracks, PA: U.S. Army War College, 1983), 6.

8. Vego, 114.

9. Ibid.

10. U.S. Marine Corps University, “About Exercise Nine Innings,” (Quantico, VA: U.S. Marine Corps University), July 20, 2015 (accessed March 8, 2016): http://guides.grc.usmcu.edu/9innings2015.

11. Ernest R. May, Strange Victory: Hitler’s Conquest of France (New York, NY: Hill and Wang, 2000), 258.

12. Peter Perla, The Art of Wargaming (Annapolis, MD: Naval Institute Press, 1990), 42.

13. Phillip S. Meilinger, The Paths of Heaven: The Evolution of Airpower Theory (Maxwell Air Force Base, AL: School of Advanced Airpower Studies, 1997), 171.

14. Vego, 130-131.

15. May, Strange Victory, 465

16. Ibid, 258.

17. Ibid, 465.

18. Ibid, 263.

19. Auftragstaktik is an approach to command in which a commander issues to a subordinate an intent for a given mission, and the subordinate is given the freedom to independently plan and execute the mission. This mindset gave subordinates flexibility in deciding how to accomplish an  assigned mission within the framework of the intent. Michael D. Krause, “Moltke and the Origins of the Operational Level of War,” Historical Perspectives of the Operational Art, Michael D. Krause and Cody R. Phillips, eds. (Washington, DC: Center for Military History, 2005), 141. 

20. Karl-Heinz Frieser, “Panzer Group Kleist and the Breakthrough in France,” Historical Perspectives of the Operational Art, Michael D. Krause and Cody R. Phillips, eds. (Washington, DC: Center for Military History, 2005), 173.

21. Ibid, 175-176.

22. Ibid, 176.

23. May, Strange Victory, 459.

24. Vego, 115.

25. Jonathan M. House, Toward Combined Arms Warfare: A Survey of 20th-Century Tactics, Doctrine, and Organization (Fort Leavenworth, KS: U.S. Army Command and General Staff College, 1984), 52.

26. Meilinger, The Paths of Heaven, 173.

27. Vego, 115.

28. Ibid, 129.

29. Ibid, 117.

30. Evans and Peattie, Kaigun: Strategy, Tactics, and Technology in the Imperial Japanese Navy, 1887-1941, 469-470.

31. Martin Van Creveld, Wargames: From Gladiators to Gigabytes (Cambridge: Cambridge University Press, 2013), 168.

32. Ibid, 167.

33.  Ibid.

34. Gordon W. Prange, At Dawn We Slept: The Untold Story of Pearl Harbor (New York, NY: Penguin Books, 1991), 225.

35. Ibid.

36. Ibid, 234.

37. Thomas B. Allen, “The Evolution of Wargaming: From Chessboard to the Marine Doom,” in War and Games, ed. Timothy J. Cornell and Thomas B. Allen (San Francisco, San Marino: Center for Interdisciplinary Research on Social Stress, 2002), 234.

38. Prange, At Dawn We Slept, 234.

39. Ibid.

40. McHugh, Fundamentals of War Gaming, 40.

41. Ibid.

42. Perla, The Art of Wargaming, 47.

43. Ibid.

44. Ibid.

45.  Gordon W. Prange, Donald M. Goldstein, and Katherine V. Dillon, Miracle at Midway (New York, NY: McGraw Hill, 1982), 35-36.

46. Ibid.

47. Allen, “The Evolution of Wargaming,” 233-234.

48. Edward S. Miller, War Plan Orange: The U.S. Strategy to Defeat Japan, 1897-1945 (Annapolis, MD: Naval Institute Press, 1991), 2.

49. Williamson Murray, “Red-Teaming: Its Contribution to Past Military Effectiveness,” DART Working Paper 02-2 (McLean, VA: Hicks and Associates, September 2002), 42.

50. Chester Nimitz, “Thesis on Tactics,” written for his master’s thesis at the Naval War College (Newport, RI: Naval War College, 1923), 35.

51. Admiral Sims is also the only active-duty U.S. naval officer to receive the Pulitzer Prize.  During his second tour as the Naval War College president, he wrote Victory at Sea and won for history writing.

52. McHugh, Fundamentals of War Gaming, 64.

53. Students at the Army War College, Army Command and General Staff College, and Marine Corps Command and Staff College also participated in wargames during the interwar period.  McHugh, Fundamentals of War Gaming, 53.

54. Van Creveld, Wargames, 166.

55. McHugh, Fundamentals of War Gaming, 53.

56. Van Creveld, 166.

57. John T. Kuehn, Agents of Innovation: The General Board and the Design of the Fleet That Defeated the Japanese Navy (Annapolis, MD: Naval Institute Press, 2008), 12-13.

58. Alfred A. Nofi, To Train the Fleet for War: The U.S. Navy Fleet Problems, 1923-1940 (Newport, RI: U.S. Naval War College Press, 2010), 20.

59. Ibid.

60. Williamson Murray, “Innovation: Past and Future,” in Military Innovation in the Interwar Period, eds. Williamson Murray and Allan R. Millett (New York, NY: Cambridge University Press, 1996), 316.

61. Kuehn, Agents of Innovation, 13.

62. Thomas C. Hone, Norman Friedman, and Mark D. Mandeles, “Innovation in Carrier Aviation,” Naval War College Newport Papers 37 (Newport, RI: U.S. Naval War College Press, August 2011), 157-158.

63. Murray, “Innovation: Past and Future,” 316-317.

64. Kuehn, Agents of Innovation, 178.

Featured Image:  NEWPORT, R.I. (May 10, 2016)
Peter Pellegrino, U.S. Naval War College’s (NWC) senior military analyst for wargaming, briefs participants of a wargame reenactment of the Battle of Jutland at NWC in Newport, Rhode Island. During the wargame reenactment, Rear Adm. P. Gardner Howe III, NWC president, commanded the German High Seas Fleet and retired Rear Adm. Samuel J. Cox, director, Naval History and Heritage Command, commanded the British Grand Fleet.
(U.S. Navy photo by Chief Mass Communication Specialist James E. Foehl/Released)