The Assumption of Access in the Western Pacific

Chokepoints and Littorals Topic Week

By Blake Herzinger and Elee Wakim

“Having therefore no foreign establishments, either colonial or military, the ships of war of the United States, in war, will be like land birds, unable to fly far from their own shores. To provide resting places for them, where they can coal and repair, would be one of the first duties of a government proposing to itself the development of the power of the nation at sea.”–Alfred Thayer Mahan, The Influence of Seapower Upon History, 1660-1783

Since before the completion of the transcontinental railroad, the United States has determined that “American security, economic prosperity, and values would be fundamentally put at risk if a rival hegemonic power dominated the Pacific.” The United States has ensured this end by various ways and means since the defeat of the Spanish Empire in 1898. Given the vast distances between continental North America and the western Pacific littorals, the United States’ ability to project power and influence is necessarily based upon expeditionary maritime capabilities and globe-spanning military infrastructure. The cornerstone of this power projection complex in the western Pacific is forward deployed military forces, which are in turn enabled by the availability of proximate and friendly basing in theater. However, the ability of the United States to sustainably conduct expeditionary operations in the strategic chokepoints and littorals of Asia could crumble in the absence of the allied access it has come to rely on.

Access to the local, dual-use infrastructure the United States enjoys today is the result of years of sustained investment of all elements of American power to align mutually interested states into a network that allows the United States to project power from their shores. In recent years, these investments have been diffused across a broad number of states, such that the mortar is crumbling under a lack of recapitalization. This critically enabling influence of forward partners is waning as the PRC rapidly expands its influence, turning the political will of forward allies into strategic chokepoints of another sort.

The U.S. is therefore forced to consider whether those locations it relies on to sustain its overseas presence – whether by formal agreement or informal association – would still be available in the event of a military confrontation between the United States and China. How would this sudden loss of access affect how the U.S. fights as a force and projects power into the western Pacific?

While there are many detractors who will lampoon the proposition that the U.S. would ever be deserted by its overseas partners – perhaps citing years of historic partnership and common interest – it is important to ask if the U.S. is willing to bet the farm on this untested and assailable assumption. If not, what must the United States do in order to hedge against the loss of its heretofore unchallenged access to the western Pacific littorals and attendant infrastructure?

Access for What?

The American military presence in the Indo-Pacific largely reflects the vestiges of the Cold War and has its roots in the exigencies of conflicts ranging from World War Two to Vietnam. The United States has military relationships with nearly every country within the First Island Chain, ranging from limited partnerships to full military alliances. U.S. security cooperation plans keep most of those relationships on ever-increasing trajectories of investment, but this may be more a function of inertia than strategic acumen. American joint doctrine makes clear that the creation of access for U.S. forces is one of the three reasons for conducting security cooperation operations. This investment has created an unparalleled network of ports and airfields capable of supporting U.S. expeditionary operations and logistics in unchallenged environments (see Table 1).

Table 1: U.S. Military access arrangements among South China Sea littoral states
Country Acquisition & Cross Servicing Agreement (ACSA) Hosts U.S. Base or Rotational Deployments Routine Base Access
Brunei x
Cambodia
Indonesia x
Malaysia x
Philippines* x x x
Singapore x x x
Taiwan
Thailand x x
Vietnam

*In question after cancellation of U.S.-PHL Visiting Forces Agreement

As the United States and China continue to jostle for position, allies and partners are pulled in separate directions. The long-relied upon American security guarantee is confronted by China’s growing military and economic strength, and geographic proximity. Despite the deep history and genuine bonhomie between the U.S. and its security partners, this confrontation jeopardizes the carefully-laid peacetime network built over decades, which must be carefully regarded as great power competition in the Indo-Pacific continues to intensify.

For those that might decry this argument as alarmist or discounting years of partnership, consider the state of the U.S.-Philippines alliance. Linked by a Mutual Defense Treaty, the two states’ militaries have stood prepared to fight shoulder-to-shoulder for decades. In February of this year, Philippines President Rodrigo Duterte announced his intention to terminate the Visiting Forces Agreement that, in large part, undergirds that same alliance. The U.S. expectation of access, a key planning consideration, evaporated overnight.

Looking back three decades, we see the U.S. military evicted from its Philippine bases in Clark and Subic Bay in a similar vein. President Duterte has been vocal since his election regarding his intention to rebalance Philippines’ foreign relations, with the subtext being a move closer to China. It is easily posited that this decision is largely motivated by the expectation of economic benefit and uncritical security assistance. And this is coming from one of the supposedly closest U.S. allies in Southeast Asia.

What then of the defense partnership with Thailand, where the U.S. has long-relied upon the U-Tapao Royal Thai Navy Airfield to support combat operations, from Vietnam to Afghanistan? Thailand’s military is now led by openly pro-China officers and their branches have recently concluded a number of high-profile purchases of major weapons platforms from China. Should the U.S. and China enter into hostilities, would Thailand offer the use of its strategic airfield with the knowledge that it might be severing ties to the source of its own military equipment? This is, of course, only the military aspect. China is also Thailand’s largest trading partner.

If the depth of U.S investments and shared interests with its closest Southeast Asian allies are crumbling during peacetime, what then does this portend for access with less formally aligned states during open conflict with the PRC? In the face of mounting evidence to the contrary, should the U.S. government continue to rely on the prospect of unfettered access to logistical support and conduct offensive operations, as it has for the past 30 years? Or is it setting up the possibility of the Joint Force having to play a scratch game as its forward elements are ejected by non-belligerents at the outset of a conflict?

All Dressed Up with Nowhere to Go

Spanning from critical repair and replenishment functions to overflight permissions and divert airfields, the premise of access in nations such as Singapore, the Philippines, Thailand, Japan, Korea, and elsewhere is crucial to American operational plans. This loss will reduce the force generation capacity in theater, constrict avenues of approach, constrain operational flexibility, render the forward logistics chain brittle, and introduce friction into the crucial opening hours of a conflict as American forces potentially scramble to adjust to a new, unpracticed reality.

One of the first and most likely casualties to a restriction on access is the loss of crucial airfields. These airfields enable everything from air dominance operations and anti-submarine warfare, to battlefield awareness and transportation of personnel and material. While their loss does not mean that the United States and coalition partners will be unable to conduct air operations within the First Island Chain, both the number of sorties and on-station time will be significantly reduced as aircraft have to fly from more distant locales. This in turn will strain the U.S. aerial refueling capability, which will be hard pressed to sustain long range operations as well as facilitate reinforcement transfer to the theater. Further, it raises the specter of increased losses, as damaged aircraft or those without return tanker support will be without a proximate place to land. Finally, it will curtail the effectiveness of the forward arming and refueling points (FARPs), which are currently touted by the Joint Force as a way of conducting distributed and short duration aviation operations from non-fixed points.

Kadena Air Base, Japan (Apr. 1, 2015) – Twelve U.S. Air Force KC-135 Stratotankers from the 909th Air Refueling Squadron taxi onto the runway during the Forceful Tiger exercise. (U.S. Air Force photo by Staff Sgt. Marcus Morris)

Singapore offers a multi-faceted case study. Viewed by many as the Southeast Asian partner closest to the United States, Singapore hosts the U.S. Navy command responsible for organizing logistics operations across the U.S. Seventh Fleet, as well as the headquarters which controls U.S. Navy Littoral Combat Ships in the region. As a related aside, the U.S. military presence in Singapore began when Singapore offered its Sembawang facility to the U.S. Navy when it was evicted from its bases in the Philippines in 1993. U.S. ships today are rotationally deployed to Singapore’s Sembawang port facility, and the Changi Naval Base was expanded for the express purpose of accommodating U.S. nuclear-powered aircraft carriers. U.S. P-8A routinely fly from Singapore’s Paya Lebar Air Base.

However, Singapore’s Prime Minister has already warned the U.S. publicly that forcing a choice between supporting the U.S. or China would be “very painful,” pointing out that, notwithstanding Singapore’s partnership with the United States, its economy is far more reliant on China. Singapore prides itself on charting a balanced course between the two competing superpowers and in the event of a U.S.-China war, its preferred position would be neutrality. The port, airfield, and logistics support currently enjoyed by the United States would place Singapore’s domestic infrastructure at unacceptable risk during a major conflict with China. Unless Singapore’s interests were directly affected by this hypothetical war, it seems very likely that U.S. forces would politely be asked to relocate, and by a partner proximate to one of the most significant chokepoints in the region.

The USS Coronado at Changi Naval Base in Singapore on Oct. 16, 2016. (Roslan Rahman/AFP via Getty Images)

It is not too much of a stretch to imagine that non-belligerents, under PRC pressure and having curtailed access to their territory, might conceivably restrict permission to overfly their country as well. This would severely limit the avenues of approach of air power and reinforcements flowing into theater as they are forced to detour around the airspace of erstwhile partners. This in turn would allow the PRC to concentrate its forces – backed up by a mainland-based reconnaissance strike complex (see Figure 1) – on these narrow vectors, such as the Luzon and Singapore straits. While coalition aircraft could overfly this previously friendly territory, to do so might invite armed challenge in response to violations of the nation in question’s sovereignty. It also risks poisoning the narrative concerning the justification of the conflict.

Figure 1: China’s Regional Missile Threat (CSIS)

The issues attendant with the loss of access are further compounded by an insufficient amount of long-range munitions. While the United States plans to buy an additional 1,625 long range “missiles with ship-killing potential” between Fiscal Year 2020 and 2025, it has only acquired approximately 1,050 weapons since Fiscal Year 2011. Comprising the Long Range Anti-Ship Missile (LRASM), Standard Missile-6 (SM-6), and Maritime Strike Tomahawk (MST), the latter two weapons are multi-purpose, and consequently may be in high demand across a globe spanning force. When considered in the context of a dearth of available shipboard launchers, the potential loss of proximate locations for USMC expeditionary advanced bases, a lack of a robust mining capability, a fragile logistics chain, and an inability to conduct forward reloading of VLS, the reduced sortie rate induced by the loss of access becomes very problematic indeed. While the Defense Department is working to address many of the identified issues, they are still extant today, raising the specter of the United States being unable to achieve its stated goal of deterrence by denial.

Where Do We (Figuratively) Go From Here?

If we accept the premise that access to forward fighting positions may be curtailed in the event of a conflict with the People’s Republic of China for foreign political or diplomatic reasons, then the United States must make prompt investments to maintain credible deterrence. While the Pacific is primarily a maritime theater – indeed, as Bryan McGrath wrote, “if it is […] the desire of the United States not to be displaced, American seapower will have to shoulder a disproportionate share of the load” – the response will require investments across the Joint Force. While some of these investments are already being made, not all are being undertaken with sufficient alacrity or scale, and are likely to be high on the divestment list in the event of declining defense budgets. Many of these initiatives – from sealift recapitalization to additional defenses for Guam – have been talked about for years, during which little to no action was taken. If the United States is to maintain a credible deterrent posture vis-a-vis the PRC, investments must be made in this “priority theater” promptly and at scale. They will not only hedge against a loss of access, but may sufficiently reassure regional partners to ward off such an outcome.

The United States will have to examine the difficult prospect of violating the sovereignty of non-belligerents in a time of war. There may well come a point when the Joint Force will have to seize key positions along the South China Sea periphery – for example, in the Philippines, Indonesia, or Malaysia – for short durations in order to facilitate operations. These operations could conceivably span from landing covering forces for chokepoint transits, or establishment of sea denial positions, to replenishment of naval vessels in calm bays or setting up FARPs in austere locales. This introduces a number of issues, including raising the risk of severe reputational damage – possibly poisoning popular will against the U.S. war effort – and the prospect of the violated party’s forces challenging these temporary occupations with force. Preparing informal access arrangements, messaging narratives, and seizure CONOPs will be vital to achieving temporary operational access when it is otherwise denied. A unified joint Foreign Area Officer team will need to stand prepared to broker these agreements when the time comes.

Japan’s invasion of the Malayan peninsula in 1941 perfectly illustrates the consequence of the failure to prepare for this scenario. Britain, unwilling to violate Thai neutrality, allowed the Imperial Japanese Army to conduct a mostly-unmolested amphibious landing which would lead to the fall of Malaya 73 days later.

Conclusion

Hedging against the risk of an unexpected and unceremonious eviction from forward positions at the onset of major war is not something to be dismissed because it is an inconvenient scenario, nor does the response require particularly imaginative solutions. It requires the expansion of existing or in-development capabilities to a capacity capable of supporting large-scale expeditionary operations by the Joint Force. Indeed, there are many commonalities between what has been discussed, and the effects of a first strike on U.S. forward positions by the PLA’s Rocket and Air Forces, namely the loss of enabling shore-based infrastructure. The key difference is that the Joint Force will not be able to rely on surging temporary forces – ISR, logistics, strike, and others – onto alternate or austere sites on the territory of allies and partners in certain scenarios.

The U.S. must prepare, today, for the possibility of a zero access environment in a western Pacific contingency to preserve military options and avoid losing a conflict before the first shots are fired. Failure to prepare may leave the United States in a situation akin to that of Rear Admiral Dewey’s fleet in 1898 when they were forced to depart from neutral Hong Kong “without a home base or reliable source of coal in wartime,” essentially to conquer or die. This time, the away team won’t be facing a decrepit Spanish fleet, but the most formidable military challenger in a generation.

Blake Herzinger (@BDHerzinger) is a civilian Indo-Pacific defense policy specialist and U.S. Navy Reserve officer. The views expressed in this article are those of the author alone and do not represent those of his civilian employer, the U.S. Navy, the Department of Defense, or the U.S. government.

Elee Wakim (@EleeWakim) is a surface warfare officer in the U.S. Navy Reserve and a Presidential Management Fellow. The views expressed here are his own and do not represent those of the U.S. Navy, the Department of Defense, or the U.S. government.

Featured Image: Singapore (Jul. 14, 2015) – The littoral combat ship USS Fort Worth (LCS 3), top left, and the Arleigh Burke-class guided-missile destroyer USS Lassen (DDG 82), top middle, rest in port at Changi Naval Base during Cooperation Afloat Readiness and Training (CARAT) Singapore 2015. (U.S. Navy photo by Mass Communication Specialist 1st Class Jay C. Pugh/Released)

Let Me Get this Strait: The Turkish Straits Question Revisited

Chokepoints and Littorals Topic Week

By Paul Pryce

The Bosporus and Dardanelles Straits, together with the adjoining Marmara Sea, are known collectively as the Turkish Straits and provide the only access between the Black Sea and the Aegean Sea. More than 40,000 vessels passed through these waters in 2019, transporting almost 650 million tons of cargo, and reaffirming the Turkish Straits as one of the most important maritime trade corridors in the world. Additionally, the shores of the Straits – which narrow at some points to as little as 700 meters apart – are home to more than 22 million people, including the historic city of Istanbul.

Since 1936, the Montreux Convention Regarding the Regime of the Straits, hereinafter referred to as the Montreux Convention, has allowed for the peaceful flow of commerce through the Turkish Straits. However, recent calls from Turkish and Russian policy circles for revisions to the Montreux Convention should be cause for concern, as these proposals threaten to either spur a naval arms race in the Black Sea region or look to exploit the Straits as a geostrategic chokepoint.

The Montreux Convention

The Montreux Convention sought to address questions regarding the status of the Turkish Straits that, by the time of the Convention’s writing, had persisted for well over a century, occasionally culminating in violence or near-violence, as in Britain’s effort to wrest control of the Dardanelles in 1922. Among its terms, the Convention stipulates that only littoral states to the Black Sea may transit capital ships (which, if we follow the 1923 Washington Naval Treaty’s definition, refers to “…a vessel of war… whose displacement exceeds 10,000 tons… or which carries a gun with a caliber exceeding 8 inches…”) through the Straits, escorted by no more than two destroyers.

The Bosporus Straits, straddled by Istanbul, are the gateway to and from the Black Sea. (Image: Marine Vessel Traffic)

It also prohibits any country from deploying to the Black Sea more than nine naval vessels displacing a total aggregate of 45,000 tons; it requires that no group of non-littoral states deploy to the Black Sea any naval vessel weighing more than 10,000 tons; and it limits the stay of any vessels from non-littoral states to just 21 days. Littoral states are further obliged under the Convention to inform the relevant Turkish authorities of an intended transit of the Straits by a military vessel at least eight days prior and non-littoral states are obliged to provide 15 days’ notice. Turkey is further empowered to close the Straits to all military traffic in wartime or when under threat of aggression while also denying passage to merchant vessels belonging to countries at war with Turkey.

It is worth noting that Annex II of the Convention specifically excludes aircraft carriers from the definition of a capital ship. This does not extend to any other ship transporting aircraft since, at the time of the Convention’s writing, it was not uncommon for battleships and other military vessels to carry observation aircraft. This may explain the Soviet Union’s unusual designation of its aircraft carriers as ‘aircraft-carrying cruisers’ – for example, the Kiev and Kuznetsov classes. These vessels could fulfill the same strategic function as carriers while still being free to transit the Turkish Straits, even as the Convention denied access to the Black Sea for NATO aircraft carriers due to their explicit designation as aircraft carriers in both name and function.

Though the Montreux Convention has constrained the capacity of NATO support to Ukraine in its struggle against Russian aggression, such as by limiting the number of vessels permitted in the Black Sea as part of Standing NATO Maritime Group 2 (SNMG2), the continued implementation of the agreement is in the national interest of the United States and other non-littoral nations. The United States has long supported the “principle of freedom of transit and navigation” referred to in Article 1 of the Convention and, although it has never ratified the United Nations Convention on the Law of the Sea (UNCLOS), the United States already abides by UNCLOS as a matter of customary international law.

On the one hand, this seems to suggest that challenging the legitimacy of the Montreux Convention would advance American interests – after all, the International Court of Justice (ICJ) ruled in 1949 that, for vessels transiting the Straits or Corfu, which runs along the coasts of Albania and Greece and which serves as a passage between the Adriatic and Ionian Seas, the concept of innocent passage should prevail over any claims of state control over such strategic waterways. With the Corfu precedent and the customary nature of UNCLOS, one might assume that a legal challenge of the Montreux Convention by a non-littoral state would easily succeed.

But the unique geography of the Turkish Straits makes this legal question far from simple. The Marmara Sea is an internal sea, all the coasts of which belong to Turkey. In the event of a dissolution of the Convention, the ICJ would need to consider whether the Turkish Straits constitute a single strait connecting two open seas, in which case innocent passage prevails, or if they are two separate straits connecting an open sea and an internal sea, in which case Turkey would be able to exert even greater control over the flow of maritime traffic through the Straits. Referring to the Turkish Straits in common parlance – rather than referring separately to the Dardanelles, the Bosporus, and the Marmara Sea – implies a single unit, and the bulk of the maritime traffic has flowed over the past decade between the Aegean Sea and the Black Sea. It would seem likely then that the ICJ would favor the conception of the Turkish Straits as a single strait connecting two open seas, but this outcome is not guaranteed.

The Turkish Straits are comprised of: (A) The Dardanelles, (B) The Marmara Sea, and (C) The Bosporus. (Image: Maritime Studies South Africa)

It is also difficult to discern to what extent the United States would be able to practically alter the administration of the Turkish Straits. Turkey is a significant maritime power in its own right and much of its naval forces are stationed at Gölcük Naval Base, located on the east coast of the Marmara Sea. Any freedom of navigation operation (FONOP) would encounter immediate resistance and would add to the existing tensions between the Turkish and U.S. governments, especially as Turkey refuses to recognize UNCLOS.

The economic and social importance of the Straits to Turkey cannot be overstated. Beyond the millions of Turkish citizens who live on its banks and the commerce the Straits facilitate, it also offers a physical representation of Turkey’s duality as a European and Asian state, while the administration of the Straits has afforded Turkey a self-image as the guardian of the Black Sea.

Given all of this, it would possibly require the wholesale destruction of Turkish naval forces to impose a major change in the administration of the Turkish Straits and, even then, barriers could be erected intentionally or accidentally that would interfere with the future use of the waterway. In short, the legal and practical status quo offers the best guarantee for the continued flow of trade through the Straits.

Calls for Reform

However, there has been much discussion in Russian and Turkish policy circles around possible revisions to the Montreux Convention. These revisions would be detrimental to U.S. national interests, which include the maximum possible freedom of transit and navigation through the Turkish Straits. In particular, since the annexation of Crimea, some Russian defense planners have called for the Convention to be revised so that the length of stay in the Black Sea for vessels from non-littoral states would be shorter than the current allowance of 21 days. Furthermore, Russian policymakers have creatively interpreted the Convention since annexing Crimea in 2014.

In May 2016, Turkish President Recep Erdogan decried the Black Sea as a “Russian Lake.” In response, the Chair of the State Duma Committee on Defense, Admiral Vladimir Komoyedov, claimed that the Russian Federation need only inform Turkey of the transit of its military vessels through the Turkish Straits and that restrictions on the number and kind of vessels transiting applied only to non-littoral states. Meanwhile, in response to Russia’s unilateral restrictions on the flow of maritime traffic through the Kerch Strait between the Black Sea and the Sea of Azov, Ukraine called in November 2018 for tighter restrictions on the number and kind of vessels from all states transiting the Turkish Straits, in hopes that this might interfere with the strategic maneuvers of the Russian Navy.

Russian Navy warships based in the Black Sea (Wikimedia Commons)

There have been rumblings from the Turkish government as to how Istanbul is “…threatened by the ever growing number of oil tankers and other dangerous cargo vessels” that transit the Straits. While Turkey has been mostly satisfied by regulations adopted through the International Maritime Organization (IMO) and other multilateral bodies, some Turkish commentators have proposed further action. In particular, some suggest promoting a regional ownership model for the Straits under the auspices of the Black Sea Economic Cooperation (BSEC), a multilateral forum comprised of Turkey and the Russian Federation but also Albania, Armenia, Azerbaijan, Bulgaria, Georgia, Greece, Moldova, Romania, Serbia, and Ukraine.

Such a model could facilitate the re-interpretation of the Montreux Convention, loosening the restrictions on vessels from Black Sea littoral states, but maintaining or even tightening the restrictions on vessels from non-littoral states. This could, in turn, be circumvented by the United States and other non-littoral states by re-flagging vessels. In the wake of the Crimean annexation, some American commentators suggested an enhanced NATO presence in the Black Sea by having U.S. Navy ships fly Bulgarian or Romanian flags. But this, too, would likely only add to tensions between the United States and Turkey as well as further undermine the rules-based order.

The Istanbul Canal

A $25-billion infrastructure project announced in 2011 by Turkey’s then-Prime Minister Recep Erdogan, known as the Istanbul Canal, presents the greatest challenge to the legal and practical status quo in the Turkish Straits. The canal would consist of a 45-kilometer waterway bisecting the European side of Istanbul, allowing 160 vessels daily to bypass the Bosporus as they transit between the Marmara and Black Seas. Officially, the Istanbul Canal was proposed to alleviate congestion on the Bosporus and divert tanker traffic toward less sensitive areas of Istanbul. However, Turkish freighter captains have cast doubt on this, noting that the canal as currently envisioned would be too shallow to accommodate many of the tankers Erdogan claims would be diverted from the Bosporus. Indeed, the canal plan calls for a maximum draft of 17 meters.

In reality, the Istanbul Canal may have been introduced to circumvent the Montreux Convention. In January 2018, Turkey’s then-Prime Minister Binali Yıldırım asserted that, as an artificial waterway, the Convention would not apply to the Istanbul Canal and so the Turkish authorities would be able to unilaterally restrict or regulate traffic through it. This again depends on whether the Turkish Straits are understood to be a single unit or as three distinct waterways – the Dardanelles, Marmara, and Bosporus. In the former interpretation, the Convention could still apply to the canal, given that it connects part of the Straits to the open waters of the Black Sea. In the latter interpretation, however, the canal would be an entirely new and distinct feature to which the Convention would indeed not apply.

Project route of the Istanbul Canal. (Image: TRTWorld)

In any case, the canal presents a serious threat to the spirit of the Convention. On the one hand, Turkey has consistently advanced the narrative that continued use of the Bosporus is unsafe to the natural environment, the millions who live on its banks, and the hundreds of vessels that transit each day, and so unilateral restrictions on maritime traffic through the Bosporus could be justified on the basis that vessels ought to transit the safer canal route. On the other hand, Turkey could upset the balance of power in the Black Sea region by allowing vessels to transit the canal that would have otherwise been denied passage through the Turkish Straits under the Convention. Either scenario would clash with the U.S. policy of seeking the maximum possible freedom of transit and navigation, while also making NATO’s capacity to support members and partners in the Black Sea region contingent on Turkish whims.

Similar concerns regarding Erdogan’s strategic intentions have been expressed in Russia, with some commentators warning that completion of the canal could soon be followed by a Turkish denouncement of the Montreux Convention. Under the Convention’s provisions, a denunciation by any of the signatories would prompt a conference to be held for the purposes of drafting amendments to the existing Convention or an entirely new agreement on the use of the Turkish Straits. For such a conference to be valid, the Convention calls for participation from three-quarters of the “High Contracting Parties” that are littoral states – in other words, five out of six of what is now Ukraine, Romania, Bulgaria, Georgia, Russia, and Turkey.

It is conceivable, then, that a denunciation by Turkey of the Montreux Convention could be followed by a conference to draft a new agreement, held validly without Turkish participation. But it is unlikely Turkey would readily abide by any new agreement that was drafted without its participation, especially when, from the perspective of the Turkish authorities, the Istanbul Canal and the denunciation of the Montreux Convention would afford Turkey full control over access between the Aegean and the Black Seas.

Open Channels

Fortunately, there are diplomatic options available that could preserve the status quo in the Turkish Straits. For example, through the auspices of the Organization for Security and Cooperation in Europe (OSCE) – of which the United States and all the Black Sea littoral states are members – a series of confidence- and security-building mechanisms (CSBMs) could be developed regarding access between the Aegean and the Black Sea. As exemplified by the Vienna Document, an integral document to the work of the OSCE, CSBMs can include annual exchanges of information on the disposition of military forces, base inspections, and the mutual invitation of observers to military exercises, all of which are intended to demonstrate to neighbors that there is no hostile intent behind various military activities in border areas.

The development of a similar document or agreement pertaining to the Turkish Straits could include a commitment from all parties not to interfere in any way with access between the Aegean and the Black Sea, aside from those powers already afforded Turkey under the Montreux Convention, effectively backstopping the Convention but also de facto extending its remit to any artificial waterways that might be established connecting the Aegean and Black Seas.

There is nothing here that would stop Turkey from refusing to abide by these terms at some later date – after all, Russia suspended its participation in the Conventional Forces in Europe (CFE) Treaty, another OSCE-related CSBM, a little over one year before it mounted its 2008 attack on Georgia. But a suspension of Turkish participation in CSBMs related to the Straits would afford an early warning to the U.S., Russia, and other interested parties that a denunciation of the Montreux Convention may be forthcoming.

Even with a Turkish denunciation of the Convention, CSBMs would help to avoid a regional arms race. The continued exchange of information between the other Black Sea littoral states would provide assurance that no one state intends to take advantage of the change in the practical and legal status of the Turkish Straits, such as by securing a side agreement with Turkey that would allow for an increased buildup of naval forces in the Black Sea. The inclusion of some clear punitive measures for state non-compliance in the CSBM could also deter Turkey from unilaterally altering the practical or legal status of the Straits – for example, the imposition of sanctions by all other parties – but this could also make the conclusion of any agreement on the CSBM unlikely. In any case, it would serve Turkey’s national interests to participate in such an arrangement as CSBMs would provide a safety net for all of the concerned parties, helping to avoid any change in the legal or practical status of the Turkish Straits from escalating into armed conflict.

Beyond multilateral agreements and fora, Erdogan must also contend with public opinion at home. The newly elected Mayor of Istanbul, Ekrem İmamoğlu, has expressed strong opposition to the Istanbul Canal project and handily defeated former Prime Minister Binali Yıldırım, a canal proponent and Erdogan ally, despite alleged efforts by the Turkish authorities to skew the election results in Yıldırım’s favor. Calls for a referendum on the canal also bode ill for Erdogan, with polling in December 2019 showing that more than 72 percent of Istanbul residents are opposed to the project. The canal could be sacrificed in hopes of avoiding a showdown with İmamoğlu for the presidency in Turkey’s anticipated 2023 general election.

Conclusion

Given the strategic importance of the Turkish Straits – and the rumblings for reform from Ankara, Moscow, and even Kyiv – the most prudent course for U.S. policymakers would be to ensure open diplomatic channels, both by pursuing commitments from littoral states in multilateral fora like the OSCE, and by maintaining an open dialogue with all Turkish stakeholders on this issue. Neglecting these diplomatic tools would mean surrendering the initiative to the Turkish authorities, who have thus far demonstrated a willingness to erode the legal order that has governed the Turkish Straits for nearly a century whenever it is deemed to serve narrowly defined national interests.

Paul Pryce is the Principal Advisor to the Consul General of Japan in Calgary, and a long-time contributor to the Center for International Maritime Security (CIMSEC). He has previously written as the Senior Research Fellow for the Atlantic Council of Canada’s Maritime Nation Program and earlier served as a Research Fellow with the Organization for Security and Cooperation in Europe (OSCE) Parliamentary Assembly.

Featured Image: Turkish Navy MILGEM corvette transits by the Dur Yolcu Memorial on its way to the Dardanelles (Turkish Ministry of Defense photo)

Strategic Chokepoints and Littorals Week Kicks Off on CIMSEC

By Dmitry Filipoff

CIMSEC received a tremendous response to our call for articles on strategic chokepoints and littorals, issued in partnership with U.S. Marine Corps University’s Brute Krulak Center for Innovation and Creativity, and as a part of Project Trident. Because of the high volume of excellent submissions received, this topic week will be extended through June 12. 

The authors took insightful and creative approaches toward exploring the significance of strategic chokepoints and littorals. One major theme is that chokepoints, usually thought of as fixed areas, are becoming more flexible in definition and function. Whether it be new chokepoints emerging in the Arctic as the ice thaws, or more abstract chokepoints flowing from gaps in operational concepts, it is clear that the nature of the chokepoint itself is evolving. What remains consistent is that the final value of influencing chokepoints and littorals is not defined by simply controlling adjacent geography, but whether economic and military access is ultimately preserved and sustained.

Another critical theme the authors point to is how great power competition is affecting the role of chokepoints and littorals. Chokepoints and littorals have often been considered as an arena for mainly competing against non-state actors or third-rate states in the developing world. But with great power competition on the rise, chokepoints and littorals are emerging as the front line in potential battlegrounds. Authors looked at the role of new technology and warfighting concepts in contesting chokepoints and littorals in great power conflict, especially through the lens of emerging constructs such as U.S. Marine Corps’ stand-in forces and expeditionary advanced bases.

Below is the lineup of articles featuring during the topic week, which will be updated as more publications are finalized.

Sea Control 180 – Narrow Seas: The Black Sea with Lt. Gen. Ben Hodges (ret.) by Jared Samuelson
Let Me Get this Strait: The Turkish Straits Question Revisited” by Paul Pryce
The Assumption of Access in the Western Pacific” by Elee Wakim and Blake Herzinger
Mine the Littorals and Chokepoints: Mine Warfare in Support of Sea Control” by Major Brian Kerg, USMC
There are no Strategic Chokepoints” by Captain Jamie McGrath, USN (ret.)
An Emerging Strategic Geometry – Thawing Chokepoints and Littorals in the Arctic” by Robert C. Rasmussen
The Strategic Littoral Geography of Southeast Asia” by Pete McPhail, Arthur Speyer, Bret Rodgers, Steve Ostrosky, Jesse Burns, and Dan Marquis
Chiseled in Space: Temporary, Non-Geographic Chokepoints in the Battle of the Atlantic” by Heather Venable
Thinking Like a Pirate: Contesting Southeast Asia’s Chokepoints” by Drake Long
Sea Control 181 – The ‘Amphibious’ 8th in the Pacific War” with Jared Samuelson, Major General Pat Donahoe, and Don Chisholm
Sink ‘Em All: Envisioning Marine Corps Maritime Interdiction” by Dustin League and Dan Justice
Seeing the World Through Points” by Captain H. Clifton Hamilton, USMC
Guarding the Gates: Is International Naval Control of the Bab Al Mandeb Feasible?” by Elizabeth White
Developing Security in a White Water World: Preparing for the Arctic” by Ian Birdwell
Does Tomorrow Ever Truly Die?” by Capt. John Holmes, USMC
Expeditionary Advanced Base Operations and Mine Warfare in Littoral Control” by Mark Howard

Dmitry Filipoff is CIMSEC’s Director of Online Content. Contact him at content@cimsec.org.

Featured Image: The Strait of Taiwan, located between the coast of southeast China and Taiwan. (Gallo Images/Getty Images)

Sea Control 180 – Narrow Seas: The Black Sea with Lt. Gen. Ben Hodges (ret.)

By Jared Samuelson

We’re kicking off our collaboration with The Krulak Center on Chokepoints and Littorals Week with a big one! Lt. Gen. Ben Hodges (ret.), former commander, U.S. Army Europe, stops by the podcast to discuss lessons learned from the exercise Defender 2020, Russia’s Black Sea strategy, and the importance of the Black Sea to NATO. 

Download Sea Control 180 – Narrow Seas: The Black Sea with Lt. Gen. Ben Hodges (ret.)

Links

  1. “One Flank, One Threat, One Presence,” by LTG (Ret.) Ben Hodges, Janusz Bugajski, COL (Ret.) Ray Wojcik, and Carsten Schmiedl, The Center for European Policy Analysis, May 2020
  2. “The Naval Power Shift in the Black Sea,” by Michael Peterson, War on the Rocks, January 9, 2019
  3. “Russia’s Strategy in the Black Sea Basin,” by Nikolas Gvosdev, War on the Rocks, August 2, 2018
  4. “Geopolitical Gerrymandering and the Importance of Key Maritime Terrain,” by Olivia Garard, War on the Rocks, October 3, 2018
  5. “Wargaming of the Black Sea Security,” by Natalia Wojtowicz, Ukraine Analytica, April 2, 2020
  6. “Naval Warfare Scenarios for 2020,” by Andrii Klymenko, Ukraine Analytica, Issue 1 (19), 2020 

Jared Samuelson is the Senior Producer of the Sea Control Podcast. Contact him at seacontrol@cimsec.org.

Fostering the Discussion on Securing the Seas.