Tag Archives: USV

Drones/Unmanned

Do USVs Have a Future in Latin American and Caribbean Navies?

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By Wilder Alejandro Sanchez

Written by Wilder Alejandro Sanchez, The Southern Tide addresses maritime security issues throughout Latin America and the Caribbean. The column discusses regional navies’ challenges, including limited defense budgets, inter-state tensions, and transnational crimes. It also examines how these challenges influence current and future defense strategies, platform acquisitions, and relations with global powers.

Unmanned surface vessels (USVs) are sailing full steam ahead, as evidenced by their (deadly) efficiency in attacks by the Ukrainian armed forces against Russian targets across the Black Sea. Though the security landscape in Europe is dramatically different from that of the Western Hemisphere, new technologies are always of interest to any armed service and USVs should be no exception. Whether USVs have a future in Latin America and the Caribbean merits deeper exploration.

Recent Developments

It is beyond the scope of this commentary to list or analyze all USV developments, but it is important to note that new platforms continue to be built and utilized worldwide. In the Black Sea, Ukraine has continued to use its deadly Sea Baby USVs. Several governments and industries want to develop USVs to add to their fleets. In the United States, the Navy’s “newest Overlord Unmanned Surface Vessel Vanguard (OUSV3), was recently launched from Austal USA’s shipyard in Mobile, Alabama,” the service reported in January. Also, the Louisiana-based shipyard Metal Shark is developing the USV Prowler and the micro USV Frenzy. As for future platforms, in Europe, the Netherlands announced its first domestic design for a USV to be used by the Dutch Navy. And in Asia, Korea’s Hyundai Heavy Industries (HHI) and the US software company Palantir Technologies signed a Memorandum of Understanding on 14 April to also co-develop a USV. USV development is flourishing around the globe.

In the Western Hemisphere, US Southern Command (SOUTHCOM) has become a testing ground for USV technology. In late 2023, ten Saildrone Voyager USVs were launched from Naval Air Station Key West’s Mole Pier and Truman Harbor to help improve domain awareness during US Fourth Fleet’s Operation Windward Stack. According to SOUTHCOM, “Windward Stack is part of 4th Fleet’s unmanned integration campaign, which provides the Navy a region to experiment with and operate unmanned systems in a permissive environment … all designed to move the Navy to the hybrid fleet.” The command aims to use its Area of Responsibility (AOR) as an innovation hub for the US military, partners and allies, and the defense industry.

(Sept. 13, 2023) – Commercial operators deploy Saildrone Voyager Unmanned Surface Vessels (USVs) out to sea in the initial steps of U.S. 4th Fleet’s Operation Windward Stack during a launch from Naval Air Station Key West’s Mole Pier and Truman Harbor. (U.S. Navy photo by Danette Baso Silvers/Released)

Regarding the late-2023 test, SOUTHCOM’s 2024 Posture Statement explains, “U.S. Naval Forces Southern Command/U.S. Fourth Fleet held its Hybrid Fleet Campaign Event, hosting 47 Department of Defense Commands, 10 foreign partners, and 18 industry partners to foster innovation and experimentation to inform the Unmanned Campaign and Hybrid Fleet.” This experimentation has included advanced kill chains, contested operations, survivability, and sustainment at sea.

Under General Laura Richardson’s command, SOUTHCOM aims to “integrate tomorrow’s technology into our operations and exercises today” by investing in robotics, cyber technology, artificial intelligence, and machine learning to “overmatch our adversaries and assist the region’s democracies.” Expanding SOUTHCOM’s missions to include testing new technologies, including USVs, is another tactic to expand the command’s importance within the US military.

Latin American-made USVs are also on the horizon. In early 2024, the Brazilian shipyard Emgepron announced a partnership with the local start-up Tidewise to manufacture the USV Suppressor. A company press release states that the Suppressor is the first platform developed in the Brazilian or Latin American defense market. Two variants of the Suppressor will be built: the seven-meter Suppress or seven and the 11-meter Suppressor 11. While regional navies have robots for underwater operations like search and rescue, USVs are not yet operated across the region.

A concept image of the Suppressor USV. (Emgepron image)

Do USVs have a future in Latin America and the Caribbean?

While the possibility of inter-state warfare across Latin America and the Caribbean is minimal (Venezuelan President Nicolás Maduro’s belligerent statements notwithstanding), there are several non-combat maritime missions in which USVs could be helpful. Dr. Andrea Resende, professor at Brazil’s University of Belo Horizonte (Centro Universitário de Belo Horizonte: UNIBH) and Una Betim University (Centro Universitário Una Betim: UNA), and Christian Ehrlich, director of the Institute for Strategy and Defense Research and a recent graduate from Coventry University with a focus on maritime security, have both made this argument.

Dr. Resende notes that USVs could be used by the Brazilian Navy and other regional navies as intelligence, surveillance, and reconnaissance (ISR) vehicles to locate suspicious vessels. For example, USVs could locate vessels engaged in the trafficking of illicit narcotics, the famous narco-boats or narco-subs. Moreover, USVs could locate illegal, unreported, or unregulated (IUU) fishing vessels. There is a tendency to think that distant water fishing fleets (DFW) are the primary perpetrators of IUU fishing in the Western Hemisphere, particularly from China. But, in reality, DWF fleets primarily operate in the South Atlantic and South Pacific, while local artisanal fishing vessels work illegally across Latin America and the Caribbean. USVs would help locate smaller IUU fishing vessels, which are more challenging to locate than a vast fleet of hundreds of ships.

In other words, USVs offer over-the-horizon capabilities for regional navies and coast guards to locate different types of vessels. Imagine an offshore patrol vessel (OPV) deploying a helicopter, a rigid inflatable boat, and a USV; quickly becoming a small fleet with vast surveillance and interception capabilities.

Moreover, USVs have practical applications for other non-combat and non-security operations, like search and rescue missions and scientific operations. Ehrlich noted that USVs can also be helpful for offshore infrastructure, “particularly to protect offshore oil platforms.” The platforms can also be used for near-shore operations, like port security.

POV video captured by Saildrone Explorer SD 1045’s onboard camera showing large waves and heavy weather conditions inside Hurricane Sam in the Atlantic Ocean at 1414UTC, Sept 30, 2021.

USVs vs UAVs and UGVs

Will USVs eventually be a component of Latin American and Caribbean fleets? The short answer is yes, but when exactly this will occur is debatable as acquisition programs vary depending on each service and, unsurprisingly, budgetary issues.

A parallel can be made with unmanned aerial vehicles (UAVs), which have become quite popular with regional militaries. Virtually every service across the region operates UAVs. In May alone, the United States donated six Aerovironment UAV systems to El Salvador’s military for border patrol operations. Meanwhile, the Brazilian UAV company Xmobots announced the training of 21 Brazilian Army personnel to operate the company’s Nauru 100C UAV. There is a clear proliferation of UAVs across Latin America and the Caribbean.

A ScanEagle UAV on display in a launcher, during the 106th anniversary celebration of Naval Aviation, at the Brazilian Navy São Pedro da Aldeia Naval Air Base, Rio de Janeiro, August 26, 2022. (Brazilian Navy photo)

On the other hand, as this analyst wrote in Breaking Defense, unmanned ground vehicles (UGVs) have not found much interest in Latin America. The Brazilian Army is reportedly interested in European-made UGVs; however, UGVs have yet to become popular among Latin American armies compared to the United States, Europe, and elsewhere.

Will USVs become the next UAV or the next UGV? So far, there are not enough data points for a proper prediction. Emgepron’s Suppressor project suggests that at least one company is willing to test the water, so to speak, to see if there is regional interest. If successful, Emgepron could quickly corner the Brazilian defense market with its homegrown USV.

In his comments to CIMSEC, Ehrlich brought up an important issue: long-term vision. For the maritime security expert, “the culture of regional navies” is the major obstacle to acquiring (or attempting to develop locally) USVs. Regional ministries of defense and navies continue to be focused on “operating traditional systems due to a doctrine that does not foment innovation.” Ehrlich mentioned that only the Brazilian Navy is interested in acquiring or developing USVs, including for potential combat missions.

Meanwhile, Dr. Resende explained that a critical factor is the budget of regional armed forces, which tend to suffer “cyclical crises” for various reasons. “Hence, the budgets for investing in the acquisition and training to utilize USVs may be limited.” Moreover, for Dr. Resende, the future of USV technology is part of a broader discussion of the present and future missions of armed forces since they face “greater restrictions as compared to the armed forces in the Global North.”

Ehrlich’s comments about vision and institutional ambition to develop new capacities are a useful lens for gauging these developments. Unsurprisingly, a Brazilian company, Emgepron, is the first in the region to attempt to develop a USV, given the Brazilian Navy’s strong interest in developing the defense industry. Several other South American shipyards are engaged in ambitious projects, including constructing frigates, offshore patrol vessels, transport vessels, and even an icebreaker; however, the Brazilian defense industry still leads the way. Perhaps if the Brazilian Navy positively reviews the Suppressor USV, other regional navies may also be interested in acquiring it.

Finally, there are obvious physical and technical requirements for a ship to transport and operate a USV, which means some basic adaptations will be needed for any ship to utilize this new technology. Navies with older vessels or a surface fleet composed of small vessels will be less likely to acquire USVs, though they could be utilized for port security and other near-shore operations, so they do not have to voyage far from a naval base.

As the war in Ukraine continues, a revolution regarding military technology is underway, and the word “Unmanned” has become very popular. Latin American and Caribbean militaries have quickly adopted UAV technology; however, UGVs have yet to be widely utilized. Likewise, regional naval forces have yet to show major interest in unmanned surface vessels beyond Brazil, and budgetary, doctrinal & technical issues are still obstacles to greater adoption. While USVs could help Latin American and Caribbean naval forces achieve their missions, not all services are in a position to acquire them. More research is necessary to understand which navies, and ministries of defense, have the long-term vision and interest in this technology. In Latin America and the Caribbean, USVs are on the horizon, but they are not yet ready to dock.

Wilder Alejandro Sánchez is an analyst who focuses on international defense, security, and geopolitical issues across the Western Hemisphere, Central Asia, and Eastern Europe. He is the President of Second Floor Strategies, a consulting firm in Washington, DC, and a non-resident Senior Associate at the Americas Program, Center for Strategic and International Studies. Follow him on X/Twitter: @W_Alex_Sanchez.

Featured Image: RNMB Harrier USV. (Royal Navy photo)

Drones/Unmanned

Unmanned Ships: A Fleet to Do What?

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By Jonathan Panter

On March 18, 2021, former Congresswoman Elaine Luria of Virginia criticized the Navy’s then-recently-released Unmanned Campaign Framework as “full of buzzwords and platitude but really short on details.” When promised a classified concept of operations, she added, “I think the biggest question I have [is]… it is a fleet to do what?”

Two and a half years later, the American public – soon to spend half a billion dollars on unmanned vessels – could ask the same thing. What strategic ends are unmanned vessels intended to serve? The Navy has yet to update the Unmanned Campaign Framework. The document promises all the right things (“faster, scalable, and distributed decision-making”; “resilience, connectivity, and real time awareness”) but provides little granular detail about the differential utility of unmanned systems across mission and warfare areas.

Nevertheless, unmanned vessels are receiving more attention than ever. The media frenzy surrounding Ukraine’s “drone boats” continues; the Navy’s Task Force 59 (responsible for testing small unmanned surface vessels in the Persian Gulf) gets the feature-length treatment in Wired; and a front-page article in the New York Times all but lobbies for more unmanned ships.

Perhaps a concept of operations for unmanned surface vessels is floating around in the classified world. But elsewhere, buzzwords still rule the day. Just weeks ago the Department of Defense announced its new “Replicator” initiative to deploy thousands of drones within two years: it will be “iterative,” “data-driven,” “game-changing,” and of course, “innovative” (variations of the latter appear 22 times in the announcement). Never mind that, in warfare, “innovative” is not always synonymous with “useful.”

Part of the problem is conceptual. The term “unmanned system” includes everything from a civilian hobbyist quadcopter used for spotting artillery in Ukraine, to the Navy’s as-yet-unbuilt “large unmanned surface vessel,” a tugboat-sized ship that is supposed to launch cruise missiles. This expansive terminology can confuse lay observers or new students of the subject. Unmanned systems have matured at different rates. Some have been thoroughly tested and proven their mettle in real-world operations; others are, at present, theoretical or even daydreams. The U.S. military has decades of experience operating unmanned aerial systems (or “aerial drones”), for instance. But the record of unmanned surface vessels – the focus of this article – is limited. Only two types of unmanned surface vessels have seen operational duty in the current era: Ukraine’s (decidedly non-autonomous) explosive-laden drones, and the U.S. Navy’s tiny “Saildrone,” a vessel with little current purpose besides visually-identifying other ships in a permissive environment. Despite these narrow use cases, the two examples are almost-unfailingly invoked in claims that a naval revolution is underway.

When the same few words, and the same few examples, so frequently justify a wholesale strategic pivot, policymakers and strategists should take pause. If the Navy intends to reorient its ways and means of warfare – and if the taxpayer is expected to pay for it – then Congress and the American people deserve a formal, public strategy document on the general purposes and risks of unmanned surface vessels.

The Missions of the Navy

The 2021 Unmanned Campaign Framework is less a plan than a promotional pamphlet. The Framework dedicates one page each to the Department of Defense’s four unmanned systems “portfolios” – air, surface, subsurface, and ground – an understandably brief introduction given the infancy of the technology and classification concerns. Because specific programs are prone to change, it is more informative to examine the promise of unmanned systems from the perspective of the underlying strategic motivation for their development. That context is a shift to what the Navy calls “distributed maritime operations”: a plan to field more platforms, in a more dispersed fashion, networked together to share information and concentrate fires, while keeping people outside the enemy’s weapons envelope, and sending more expendable assets inside of it. Unmanned ships, the Framework contends, free up humans for other tasks, reduce the risk to human life, increase the fleet’s persistence, and make it more resilient by providing more “nodes” in the network. They are also – the Navy frequently claims – cheap. The Chief of Naval Operations’ Navigation Plan 2022 also promises that unmanned systems will deliver particular means of warfare (e.g., increased distribution of forces) but again, without specifying the differential application of such means across mission and warfare areas.

The first step in determining the likely future distribution of unmanned surface vessel risk is projecting where those vessels are most likely to be used. Setting aside strategic deterrence, which remains the realm of ballistic missile submarines, the Navy’s core four missions are sea control, presence, power projection, and maritime security.

Forward Presence is the practice of keeping ships persistently deployed overseas, demonstrating U.S. capabilities and resolve, in order to deter adversaries and reassure allies. Unmanned ships’ putative “advantages” – that they are cheap, small, expendable, and don’t risk personnel – are decidedly counterproductive for this purpose. Deterrence and reassurance require convincing adversaries and allies that one has skin in the game, and risking an unmanned asset hardly compares to risking a destroyer and her crew. On the other hand, the Navy’s large and medium unmanned surface vessels, if ever successfully fielded (and there are ample reasons to suggest that severe challenges remain) might contribute to the credible combat power that deterrence requires.

Another possible argument is that unmanned vessels will free up manned ships for those specific presence operations where a human touch is invaluable (such as port visits), reducing strain on the fleet. But that raises a conundrum. For a ship to demonstrate credible combat power, it must be able to shoot. And the Navy has made clear that any unmanned ship with missiles and guns will be under human control. Particularly in the next few decades, when unmanned vessels’ maintenance and support requirements will be high, nearby manned ships will probably provide that control. Hence, while unmanned vessels could increase the fleet’s vertical-launch capacity – and therefore its combat credibility – they may also worsen operational tempo or contribute to higher overall costs.

Power Projection is the use of ships to fire missiles, launch aircraft, land troops, or provide logistical resupply in support of combat operations on land. The Navy’s large unmanned surface vessel is expected to serve this mission by swelling the Navy’s capacity to launch land-attack missiles. Destroyers and guided missile submarines already serve this function, but unmanned vessels will, according to their advocates, do so more cheaply and with less human risk. But since manned assets’ capabilities in this area are proven, and unmanned assets’ capabilities are not, the Navy must explain what happens if the new technologies fail, and the traditional fleet – perhaps prematurely shrunken or reordered to accommodate the unmanned systems – has to step in to pick up the slack. Unmanned vessels are not officially intended to “replace” manned warships, but a significant strategic imperative for their development is the Navy’s tacit acknowledgment that, given constrained budgets, it cannot achieve its desired fleet expansion with manned ships alone.

Sea Control is attacking enemy ships, aircraft, and submarines, so that the U.S. and its allies can use the sea for power projection or make it passable for wartime commerce. Its corollary is sea denial: preventing an enemy from using of the sea for his purposes. This is where unmanned surface vessels are really supposed to shine. The two biggest arguments for their value-add in sea control are intelligence, surveillance and reconnaissance (ISR), and increased anti-ship missile capacity. There are also interesting emerging use cases, such as swarming electromagnetic warfare.

Small unmanned surface vessels, like the Saildrone – the argument goes – can loiter in large numbers, for weeks at a time (using solar power), all over a battlespace, looking and listening for enemies. While such a niche case for surveillance can be useful, the problem is that maritime surface ISR can struggle to match the global access and persistence of space-based and airborne ISR. Even in relatively constrained areas like the East and South China Seas, the search areas are vast. Unmanned surface vessels cannot match the revisit rates of low earth orbit satellites when combing large swaths of the ocean’s surface. In the last few years, the vast growth in low-earth orbit satellite constellations (both commercial and government-owned) has further diminished the urgency and budget efficiency of meeting ISR needs with surface ships. Ironically, the Saildrone and similar craft may end up being more dependent on space, because unmanned surface ISR assets operating over the horizon will rely on satellite communications to send mission data back. As for airborne ISR (that conducted by manned or unmanned aircraft), small unmanned surface vessels deployed en masse can exceed the persistence of aircraft, but at the cost of sensor reach: these vessels’ low “height of eye” inherently limits the range of their electro-optical sensors.

That relates to the second role unmanned ships are expected to serve in the sea control mission: offensive surface warfare. As noted, the Navy has been explicit that any unmanned ship with kinetic capabilities will be controlled by humans. As such, these vessels cannot be compared to, say, a command-guided missile that switches to radar in the terminal phase. Any kinetic-equipped unmanned vessel will rely on over-the-horizon communications relay provided by satellites, manned and unmanned surface vessels, or airborne assets. But if the Navy expects a satellite-degraded environment, as is possible in a conflict with a peer competitor, then surface and airborne assets will substantially assume the relay burden (requiring far greater numbers of them). Considering the Navy’s stated intent that most unmanned assets be “attritable,” however, it remains to be seen how long such a distributed network would last before manned vessels must themselves assume the relay function, bringing them closer to the enemy’s weapons engagement zone.

Maritime Security refers to constabulary functions such as protecting commerce from terrorists and pirates and preventing illegal behavior such as arms smuggling and drug running. In such operations, small and medium unmanned surface vessels could technically conduct surveillance, issue warnings, or engage threats with small-caliber weapons while under remote human control. The latter, however, seems especially unlikely in practice. Maritime security is a peacetime endeavor, conducted in congested sea space among civilians. Accordingly, there is a high premium on positive identification of bad actors, and generally the goal is not to kill anyone. A human touch will be required – not just “in the loop,” but probably on-scene.

Another problem is that, if unmanned vessels are small and cheap – two of their most celebrated characteristics – terrorists and drug runners may be able to disable them quite easily. Saildrone, therefore, adds most value for maritime security ISR under the following narrow set of conditions: when no aviation assets, satellite coverage, or allied coast guards are available; manned ships or shore facilities are within communications range; it is sunny, or enough sunny days have recently passed to keep batteries charged; and the targets of surveillance are incapable of shooting at, or (as with Iran in 2022), attempting to capture the drone monitoring them from within visual range.

The Risks of Concentration

Most contemporary Navy ships can be used for a variety of the missions delineated above. Destroyers can be used for power projection, sea control, presence, and maritime security; aircraft carriers can be used for all of those; amphibious assault ships are best for power projection and presence but can readily support maritime security. None of this is true for any unmanned vessel – not any in production, and none even in the design phase. A large unmanned surface vessel will have one purpose: to support power projection. Medium unmanned surface vessels will have two purposes: to contribute to sea control and maritime security.

Multi-mission capability, however, is not necessarily the goal. Unmanned assets, proponents argue, will not replace manned ships, but rather augment them as part of a “hybrid fleet.” The Navy expects a force structure that is 40 percent unmanned by 2050, although that does not mean that each naval mission area will be 40 percent unmanned. Some missions will rely more heavily on unmanned platforms than others will. This means the risks of unmanned vessels will not be evenly distributed across the Navy’s missions.

In general, we can forecast that unmanned vessels will fall out of operation (in peacetime) or attrite more quickly (in wartime) than manned ships for two reasons. First, the technology is immature and likely to remain so for a long time; currently, unmanned vessels are prone to inherent hull, mechanical, and electrical casualties, and cyber vulnerabilities. In brief, persistence is these vessels’ greatest challenge (and one the Defense Advanced Research Projects Agency is attempting to solve). Unmanned vessels may be required to keep station for weeks or months, in contrast to aerial drones’ persistence times, which are measured in hours. The longer unmanned surface vessels are at sea without maintenance, the greater their chance of routine equipment failure that either requires remote troubleshooting or on-scene repair. The former incurs both electromagnetic targeting and cyber risk. Second, unmanned vessels are explicitly designed to be less survivable, or “expendable” in the words of proponents.

The New York Times feature article mentioned previously illustrates the problem. It observes that the Navy has not scaled the success of Saildrone by integrating larger unmanned surface vessels into the fleet. This failure is attributable, the article argues, to bureaucratic inertia and industry capture. Missing from the discussion is the fact that the hull, mechanical, and electrical solutions required to field a 2000-ton medium unmanned surface vessel (especially one capable of persistent operations) are an order of magnitude more complex than those required for the 14-ton Saildrone. The propulsion requirements alone, let alone combat systems, place the former decades behind the latter in technological maturity. It is therefore nearly guaranteed that by 2030, for instance – even if the Navy has increased the overall percentage of unmanned vessels in its force structure – the Navy will not be able to have significant numbers of unmanned vessels in key mission areas.

Accordingly, the Navy must assess concentration risk: what happens when certain missions, but also warfare areas within those mission areas, degrade at different rates due to the differential survivability of manned versus unmanned assets. As a thought experiment, let us assume the Navy hits its 40 percent unmanned target. However, because Saildrones are far less technically complex, and far cheaper, than large unmanned surface vessels, the future fleet has more of the former than the latter. That future fleet would therefore be more reliant on unmanned assets for maritime security than for presence. Suppose, then, that China executes a successful cyber attack against a network of Saildrones; suddenly the maritime security mission is compromised, and the Navy must draw on its manned assets to support it – at the expense of the presence mission.

Sound unrealistic? Ukraine recently hacked Iranian-made drones used by Russia; during the Solar Winds hack, malicious code was delivered via legitimate code process; and the National Oceanic and Atmospheric Administration’s satellite network was hacked on at least one known occasion. And these are only some of the reasons why any unmanned asset with external communications capability must be assumed as cyber-vulnerable by default.

Beware Innovation for Innovation’s Sake

It should make the hairs stand up on the back of one’s neck when a new capability is described as simultaneously cheaper and more effective; when dozens of articles use the same buzzwords; when strategy documents are heavy on sweeping generalizations and light on detail; when the claim that technology will “mature” is delivered as a certainty; when “innovative” is treated as synonymous with “useful;” or when the same few empirical examples appear in every article on a subject. All of these are present in spades in media coverage of unmanned vessels.

If the U.S. Navy is to embark on a costly project with uncertain chances of success, it owes Congress and the American people a better Unmanned Campaign Framework, or an unclassified concept of operations that disaggregates the role of unmanned ships across the Navy’s various missions, and the warfare areas that comprise them. Such a concept must be honest about concentration risk and suggest ways to mitigate it. And Congress, which has already begun to take a deeper interest in unmanned platforms, should hold the Navy to account.

Jonathan Panter is a Ph.D. Candidate in Political Science at Columbia University. His dissertation examines the strategic logic of U.S. Navy forward presence. Prior to attending Columbia, he served as a Surface Warfare Officer in the U.S. Navy.

The author thanks Anand Jantzen and Ian Sundstrom for comments on an earlier draft of this article.

Featured Image: NAVAL STATION KEY WEST, Fl. – (Sept. 13, 2023) Commercial operators deploy Saildrone Voyager Unmanned Surface Vessels (USVs) out to sea in the initial steps of U.S. 4th Fleet’s Operation Windward Stack during a launch from Naval Air Station Key West’s Mole Pier and Truman Harbor(U.S. Navy photo by Danette Baso Silvers/Released)

Drones/Unmanned

Exercise Digital Horizon: Accelerating the Development of Unmanned Surface Vehicles

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By George Galdorisi

The international community has been tremendously proactive in undertaking operations, exercises, experiments, and demonstration to accelerate the development and fielding of unmanned surface vehicles, reflecting the real importance of these systems to world navies. Much of this work has occurred in and around the Arabian Gulf under the auspices of Commander U.S. Fifth Fleet and Task Force 59.

These ambitious exercises throughout the course of 2022 provided a learning opportunity for all participating navies. These culminated in the capstone unmanned event, Exercise Digital Horizon, a three-week event in the Middle East focused on employing artificial intelligence and 15 different unmanned systems: 12 unmanned surface vehicles (USVs) and three unmanned aerial vehicles (UAVs).

A key goal of Digital Horizon was to speed new technology integration across the 5th Fleet, and to seek cost-effective alternatives for Maritime Domain Awareness (MDA) missions. As Carrington Malin described the importance of Digital Horizon:

“Despite the cutting-edge hardware in the Arabian Gulf, Digital Horizon is far more than a trial of new unmanned systems. This exercise is about data integration and the integration of command and control capabilities, where many different advanced technologies are being deployed together and experimented with for the first time.

The advanced technologies now available and the opportunities that they bring to enhance maritime security are many-fold, but these also drive an exponential increase in complexity for the military. Using the Arabian Gulf as the laboratory, Task Force 59 and its partners are pioneering ways to manage that complexity, whilst delivering next-level intelligence, incident prevention and response capabilities.”1

Digital Horizon brought together emerging unmanned technologies and combined them with data analytics and artificial intelligence in order to enhance regional maritime security and strengthen deterrence by applying leading-edge technology and experimentation.2 Vice Admiral Brad Cooper, commander of U.S. Naval Forces Central Command, U.S. 5th Fleet and Combined Maritime Forces introduced the exercise and highlighted its potential: “I am excited about the direction we are headed. By harnessing these new unmanned technologies and combining them with artificial intelligence, we will enhance regional maritime security and strengthen deterrence. This benefits everybody.”3

Click to expand. Graphic illustration depicting the unmanned systems that will participate in exercise Digital Horizon 2022. The three-week unmanned and artificial intelligence integration event involved employing new platforms in the region for the first time. (U.S. Army graphic by Sgt. Brandon Murphy)

Captain Michael Brasseur, then-commodore of Task Force 59, emphasized the use of unmanned maritime vehicles to conduct intelligence, surveillance and reconnaissance missions, including identifying objects in the water and spotting suspicious behavior.4 He noted: “We pushed beyond technological boundaries and discovered new capabilities for maritime domain awareness to enhance our ability to see above, on and below the water.”5

During Digital Horizon, Task Force 59 leveraged artificial intelligence to create an interface on one screen, also called a “single pane of glass,” displaying the relevant data from multiple unmanned systems for watchstanders in Task Force 59’s Robotics Operations Center (ROC). Reviewing what was accomplished during this event, Captain Brasseur marveled at the pace of innovation: “We are challenging our industry partners in one of the most difficult operational environments, and they are responding with enhanced capability, fast.”6

One of the features of Digital Horizon, and in line with the first word of the exercise, “Digital,” was the ability of one operator to command and control five unique drones, a capability long-sought by U.S. Navy officials.7 The Navy is acutely aware of the high cost of manpower and is dedicated to moving beyond the current “one UXS, multiple joysticks, multiple operators,” paradigm that has plagued UXS development for decades.

Digital Horizon was a unique exercise from the outset. Task Force 59 worked with the Department of Defense’s Defense Innovation Unit (DIU) in order to leverage that organization’s expertise as a technology accelerator. Additionally, given the U.S. Navy’s ambitious goals to rapidly test and subsequently acquire USVs to populate the Fleet, CTF-59 used a contractor-owned/contractor operated (COCO) model to bring a substantial number of unmanned systems to Digital Horizon, well beyond those already in the inventory. This approach sidestepped the often clunky DoD acquisition system while providing appropriate oversight during the exercise and gaining operational experience with new systems.

MANAMA, Bahrain (Nov. 19, 2022) Various unmanned systems sit on display in Manama, Bahrain, prior to exercise Digital Horizon 2022. (U.S. Army photo by Sgt. Brandon Murphy)

Another distinctive feature of Digital Horizon involved launching and recovering small UAVs from medium-size USVs. This lash-up leveraged the capabilities of both unmanned assets, enabling the long-endurance USVs to carry the shorter-endurance UAVs to the desired area of operations. This “operationalized” a CONOPS that emerged from the U.S. Navy laboratory community years ago.8

The results of Digital Horizon lived up to the initial hype. During a presentation at the 2023 Surface Navy Association Symposium, here is how Vice Admiral Cooper described what was accomplished during Digital Horizon:

“We are creating a distributed and integrated network of systems to establish a “digital ocean” in the Middle East, creating constant surveillance. This means every partner and every sensor, collecting new data, adding it to an intelligent synthesis of around-the-clock inputs, encompassing thousands of images, from seabed to space, from ships, unmanned systems, subsea sensors, satellites, buoys, and other persistent technologies.

No navy acting alone can protect against all the threats, the region is simply too big. We believe that the way to get after this is the two primary lines of effort: strengthen our partnerships and accelerate innovation…One of the results from the exercise was the ability to create a single operational picture so one operator can command and control multiple unmanned systems on one screen, a ‘Single Pane of Glass’ (SPOG)…Digital Horizon was a visible demonstration of the promise and the power of very rapid tech innovation.”9

The results of Digital Horizon could change the way the world’s navies conduct maritime safety and security. Having multiple unmanned systems conduct maritime surveillance, with the operations center then using big data, artificial intelligence and machine learning to amalgamate this sea of data into something that commanders can use to make real-time decisions, enables navies to “stretch” their crewed vessels and use them for more vital missions than merely conducting surveillance.

As one example of how Digital Horizon brought together COTS unmanned surface vehicles with COTS systems and sensors, the T-38 Devil Ray was equipped with multiple state-of-the-art COTS sensors to provide persistent surveillance. The T-38 provided AIS, full motion video from SeaFLIR-280HD and FLIR-M364C cameras, as well as the display of radar contacts on a chart via the onboard Furuno DRS4D-NXT Doppler radar. These were all streamed back to Task Force 59’s Robotics Operations Center via high bandwidth radios and SATCOM.

These exercises and initiatives are important if the Navy is to convince a skeptical Congress that its plans for unmanned systems are sound, and represent an important course change in the way the Navy intends to communicate with Congress, by “showing, not telling” what its unmanned systems can do.10 This approach is vital, for as long as Congress remains unconvinced regarding the efficacy of the unmanned systems the Navy wishes to procure; it is unlikely that funding will follow.11

Secretary of the Navy, Carlos Del Toro, explained this new “show, don’t tell,” philosophy built on an ongoing series of exercises, experiments and demonstrations, further indicating that he believes the Navy is “on the same page as Congress:”

“The Navy has a responsibility to be able to prove that the technology that Congress is going to invest in actually works and it meets what we need to address the threat. I think that’s the responsible thing to do…I don’t see it as a fight between Congress and the Department of Navy. I think we’re aligned in our thinking about what has to be done.”12

Indeed, in remarks at the Reagan National Defense Forum, Secretary Del Toro said the Navy intends to stand up additional unmanned task forces around the globe modeled after what Task Force 59 accomplished during Digital Horizon, noting:

“We’ve demonstrated with Task Force 59 how much more we can do with these unmanned vehicles—as long as they’re closely integrated together in a [command and control] node that, you know, connects to our manned surface vehicles. And there’s been a lot of experimentation; it’s going to continue aggressively. And we’re going to start translating that to other regions of the world as well. That will include the establishment of formal task forces that will fall under some of the Navy’s other numbered fleets.”13

Secretary of the Navy Del Toro continued this drumbeat during the U.S. Naval Institute/AFCEA “West” Symposium in February 2023. In a keynote address describing the Navy’s progress and intentions regarding integrating unmanned systems into the Fleet, he emphasized the progress that CTF-59 had made, especially in the area of successfully integrating unmanned systems and artificial intelligence during Digital Horizon.14

A Marine Advanced Robotics WAM-V unmanned surface vessel operates in the Arabian Gulf, Nov. 29, during Digital Horizon 2022. (U.S. Army photo by Sgt. Brandon Murphy)

Importantly, the U.S. Navy has now created the infrastructure to accelerate the testing and evaluation of unmanned surface vehicles. In 2019, the Navy stood up Surface Development Squadron One to provide stewardship for unmanned experimentation and manned-unmanned teaming.15 In 2022, seeking to put additional emphasis on unmanned maritime vehicles, the Navy established Unmanned Surface Vessel Division One (USVDIV-1), under the command of Commander Jeremiah Daley.16

This new division oversees medium and large unmanned surface vessels out of Port Hueneme Naval Base in Ventura County.17 Unmanned Surface Vessel Division One is engaged with the Fleet to move the unmanned surface vessels further west and exercise autonomy, payloads, and hull, mechanical and electrical (HM&E) systems to ensure that future programs of record (LUSV and MUSV) are successful from inception, and that they provide lethality and combat effectiveness for future naval and joint forces.

Digital Horizon presages a new paradigm in the way navies will think about uncrewed assets, no longer as “vehicles” but rather as “systems” that are nodes in a web of assets delivering far greater capability than the sum of the parts. World navies will conduct ambitious unmanned exercises, experiments and demonstrations throughout 2023 and beyond, and the lessons learned from Digital Horizon will no doubt inform those efforts.

Captain George Galdorisi (USN – retired) is a career naval aviator whose thirty years of active duty service included four command tours and five years as a carrier strike group chief of staff. He began his writing career in 1978 with an article in U.S. Naval Institute Proceedings. He is the author of 15 books, including four New York Times best-sellers. The views presented are those of the author, and do not reflect the views of the Department of the Navy or the Department of Defense.

References

1. Carrington Malin, “A Testbed for Naval Innovation,” Middle East AI News, December 1, 2022.

2. Aaron-Matthew Lariosa, “US Navy Highlights TF 59 Contributions to Fleet’s Unmanned Vision,” Naval News, January 23, 2023.

3. “U.S. Launches New Unmanned & AI Systems Integration Event,” U.S. Naval Forces Central Command Public Affairs, November 23, 2022, accessed at: https://www.cusnc.navy.mil/Media/News/Display/Article/3226901/us-launches-new-unmanned-ai-systems-integration-event/.

4. J.P. Lawrence, “Navy’s ‘Influx’ of Aquatic and Aerial Drones Tested in the Middle East,” Stars and Stripes, December 1, 2022.

5. “Digital Horizon Wraps Up: Task Force 59 Perspective, Second Line of Defense, December 22, 2022.

6. Geoff Ziezulewicz, “New in 2023: Here Comes the First-Ever Surface Drone Fleet,” Navy Times, January 3, 2023.

7. Justin Katz, “Accenture Demos Data Vis, C2 for Multiple USVs During Navy’s Digital Horizons Exercise,” Breaking Defense, December 16, 2022.

8. Vladimir Djapic et al, “Heterogeneous Autonomous Mobile Maritime Expeditionary Robots and Maritime Information Dominance,” Naval Engineers Journal, December 2014.

9. Audrey Decker, “5th Fleet Commander Details ‘Digital Ocean’ After TF-59 Reaches FOC,” Inside the Navy, January 16, 2023.

10. See, for example, George Galdorisi, “Catch a Wave: Testing Unmanned Surface Vehicles Is Becoming an International Endeavour,” Surface SITREP, Winter 2022.

11. “Navy Failing to Make ‘Critical Pivot’ In Unmanned Investment,” Inside the Navy, October 10, 2022.

12. Justin Katz, “Show, Don’t Tell: Navy Changes Strategy to Sell Unmanned Systems to Skeptical Congress,” Breaking Defense, March 10, 2022.

13. Jon Harper, “Navy to Establish Additional Unmanned Task Forces Inspired by Task Force 59,” Defense Scoop, December 4, 2022.

14. Remarks by the Honorable Carlos Del Toro, Secretary of the Navy, at the U.S. Naval Institute/AFCEA “West” Symposium, February 16, 2023.

15. Meagan Eckstein, “Navy Stands Up Surface Development Squadron for DDG-1000, Unmanned Experimentation,” USNI News, May 22, 2019.

16. “Navy to Stand Up New USV Command This Summer,” Inside the Navy, January 13, 2022.

17. Joshua Emerson Smith and Andrew Dyer, “Navy Ramps Up Efforts on Unmanned Vessels,” San Diego Union Tribune, May 16, 2022, and Diana Stancy Correll, “Navy Creates Unmanned Surface Vessel Division to Expedite Integration of Unmanned Systems,” Navy Times, May 16, 2022.

Featured Image: T38 Devil Ray during Exercise Digital Horizon. (Photo by Dave Meron)

Call for Articles

Call for Articles: Unmanned Systems Program Office Launches CIMSEC Topic Week

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Submissions Due: April 30, 2019
Week Dates: May 6–May 10, 2019
Article Length: 1000-3500 words
Submit to: [email protected]

By CAPT Pete Small, Program Manager, Unmanned Maritime Systems

The U.S. Navy is committed to the expedited development, procurement, and operational fielding of “families” of unmanned undersea vehicles (UUVs) and unmanned surface vessels (USVs). CNO Adm. John Richardson’s Design for Maintaining Maritime Superiority (Version 2.0) explicitly calls for the delivery of new types of USVs and UUVs as rapidly as possible.

My office now manages more than a dozen separate efforts across the UUV and USV domains, and that number continues to increase. The Navy’s commitment to unmanned systems is strongly reinforced in the service’s FY2020 budget with the launching of a new high-priority program and key component of the Future Surface Combatant Force — the Large Unmanned Surface Vessel (LUSV) — along with the funding required to ensure the program moves as rapidly as possible through the acquisition process. This effort is closely aligned with the Medium Unmanned Surface Vessel (MUSV) rapid prototyping program started in FY19. Mine Countermeasures USV (MCM USV) efforts have several key milestones in FY19 with Milestone C and low-rate initial production of the minesweeping variant and the start of minehunting integration efforts.

U.S. Navy’s unmanned surface vessels systems vision. (NAVSEA Image)

On the UUV side, the ORCA Extra Large UUV (XLUUV) program has commenced the fabrication of five systems that are expected to begin testing in late 2020. The Snakehead submarine-launched Large Displacement UUV (LDUUV) is wrapping up detailed design and an operational prototype will be ready for Fleet experimentation by 2021. Several medium UUV programs continue in development, production, and deployment including Mark 18, Razorback, and Knifefish. So these new and different systems are coming online relatively quickly.

Supporting the established families of UUVs and USVs are a number of Core Technology standardization efforts in the areas of battery technology, autonomy architecture, command and control, and machinery control. While these architecture frameworks have stabilized and schedules have been established, there are still a host of logistical and sustainability issues that the Navy must work through. Most of these unmanned platforms do not immediately align with long-established support frameworks for surface ships and submarines. These are critical issues and will impact the operational viability of both UUVs and USVs if they are not fully evaluated and thought through before these systems join the Fleet.

Here are some of the questions we are seeking to more fully understand for the long-term sustainment and support of UUVs and USVs:

  • Where should the future “fleets” of UUVs and USVs be based or distributed?
  • What infrastructure is required?
  • How or where will these systems be forward deployed?
  • What sort of transportation infrastructure is required?
  • What is the manning scheme required to support unmanned systems?
  • How and where will these unique systems be tested and evaluated?
  • How do we test endurance, autonomy, and reliability?
  • What new policies or changes to existing policies are required?
  • How will these systems be supported?
  • What new training infrastructure is required?

To help jumpstart new thinking and address these questions and many others we have yet to consider, my office is partnering with the Center for International Maritime Security (CIMSEC) to launch a Special Topic Week series to solicit ideas and solutions. We are looking for bold suggestions and innovative approaches. Unmanned systems are clearly a growing part of the future Navy. We need to think now about the changes these systems will bring and ensure their introduction allows their capabilities to be exploited to the fullest.

The results of this topic week can be viewed here.

CAPT Pete Small was commissioned in 1995 from the NROTC at the University of Virginia where he earned a Bachelor of Science Degree in Mechanical Engineering. He earned a Master of Science Degree in Operations Research in 2002 from Columbia University, and a Master of Science Degree in Mechanical Engineering and a Naval Engineer Degree in 2005 from the Massachusetts Institute of Technology. He is currently serving as Program Manager PMS 406, Unmanned Maritime Systems. 

Featured Image: Common Unmanned Surface Vessel (CUSV) intended to eventually serve as the U.S. Navy’s Unmanned Influence Sweep System (UISS) unmanned patrol boat. (Textron photo)