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Ai-Enabled Autonomous Weapons And Human Control: Part I: Human Control And Machine Learning Design And Development, Lena Trabucco

International Law Studies

At the center of the emergence of artificial intelligence (AI) and autonomous weapon systems (AWS) is the challenge of human control. AI has the potential to reshape the boundaries of military capabilities. In particular, the increasing sophistication of AWS necessitates a deep examination of the balance between machine autonomy and the role and requirements of human decision-makers. In pursuit of this balance, the concept of meaningful human control emerged. It is a concept born of necessity and offers a platform to reexamine and redefine the scope of human involvement in critical and time-sensitive decision-making. MHC has become a defining feature …

Proportionality: Can’T Live With It But Can’T Live Without It, Geoffrey S. Corn

International Law Studies

Perhaps no other word in the international humanitarian law lexicon evokes more interest and emotion than proportionality. How States implement the rule of proportionality is perhaps the most hotly debated aspect of international humanitarian law. The indeterminate nature of the rule allows for its meaning to conform to whatever its reader wants it to mean. This is a consequence of the variables related to key provisions of the rule: How do we assess military advantage? What makes an anticipated military advantage “concrete and direct”? And most problematic of all, what is the meaning of the term “excessive”? All of these …

Artificial Intelligence And Autonomous Systems In Warfighting At Sea, Nicholas Kadlec

International Law Studies

Much of the debate surrounding the military use of artificial intelligence (AI) tends to focus on lethal autonomous weapons systems. Those are systems that, once activated, can select and engage targets without further human intervention; sometimes pejoratively called “killer robots.” Moreover, debates often focus on their use and risks in land warfare. This land-warfare focus tends to invoke questions about the systems’ ability to distinguish between combatants and civilians on urban battlefields and the potential for mistakes. Legal debates about the lawfulness of AI and lethal autonomous weapons systems in warfare similarly tend to focus on land warfare and thus …

Cosmic Force: A Framework For Applying The Prohibition Of The Use Of Force In Outer Space, Erin Pobjie

International Law Studies

Outer space is becoming increasingly contested and existing approaches to identifying prohibited force in outer space lack a systematic foundation, hindering their application to novel challenges such as temporary interference with critical satellites or threats involving commercial space actors. This article addresses this gap by developing the first comprehensive, multifactorial legal framework for identifying a prohibited use of force in outer space. This framework provides a structured method for analyzing non-kinetic actions, temporary effects, and persistent hazards like space debris. It fundamentally advances existing legal approaches in three ways. First, it establishes when States can be implicated in a violation …

Re-Envisioning Nuclear Deterrence, Raul (Pete) Pedrozo

International Law Studies

This article examines whether the U.S. nuclear umbrella provided to allies is currently viable and whether it is time for the United States to share nuclear weapons technology with its allies in the Asia-Pacific to counter the growing nuclear threat posed by China, North Korea, and Russia. The article discusses the current capabilities and nuclear doctrine of States possessing nuclear weapons, as well as Iran’s nascent nuclear weapons program. It then discusses the current international law and regulatory regime applicable to nuclear weapons. It analyzes the threats posed by China’s and Russia’s nuclear capabilities, and how they affect U.S. nuclear …

Newport Manual On The Law Of Naval Warfare, Second Edition, Newport Manual Expert Group

International Law Studies

The Newport Manual on the Law of Naval Warfare, Second Edition, is a continuing effort to restate the law of naval warfare as a purely lex lata exercise. Like the first edition of 2023, it is designed to provide a practical guide for commanders and seafarers, lawyers and officials, and educators and students. In doing so, the Manual includes developments in warfighting technologies in recent decades, which have significantly influenced the nature of war at sea. This second edition has been edited by four of the original authors following an extensive review and revision process.

Sabotage Of Submarine Cables And Pipelines As A Use Of Force And Armed Attack, Christian Schaller

International Law Studies

Combating sabotage of submarine cables and pipelines is a matter of law enforcement, subject to the international law of the sea. However, such acts may also constitute the use of force and an armed attack under Articles 2(4) and 51 of the UN Charter. The application of these concepts requires clarification of the “international relations” in which the use of force takes place and identification of the State against which the armed attack occurs. This article argues that, in the absence of evidence to the contrary, the sabotage may be presumed to be directed against the States connected to the …

Implementing Agreement To Enhance Protection Of Critical Undersea Infrastructure, Raul (Pete) Pedrozo

International Law Studies

Since 2022, there have been several incidents of apparent intentional damage to submarine cables and pipelines in the Baltic Sea and in the waters around Taiwan. Affected coastal States correctly complain that malign actors, like Russia and China, exploit gaps in international law that make it exceedingly challenging to hold the perpetrators accountable. None of the international agreements applicable to the protection of critical undersea infrastructure provide for adequate coastal State enforcement authority beyond the territorial sea. Several proposals have been made to provide greater protection for critical undersea infrastructure—adopt a UN Security Council resolution, European Union Action Plan, naval …

The Obligation Of “Due Regard” In The Eez During Armed Conflict At Sea, James Kraska

International Law Studies

This article explores the rights of belligerent warships and military aircraft to engage in hostile operations within a neutral coastal State’s exclusive economic zone (EEZ) during armed conflict. It argues that peacetime rules of due regard for coastal State sovereign rights and jurisdiction do not constrain these operations. The United Nations Convention on the Law of the Sea (UNCLOS) established the peacetime obligation of due regard in the EEZ. By 1984, the EEZ had become customary international law binding on all States. The San Remo Manual on International Law Applicable to Armed Conflict at Sea suggests belligerent naval forces owe …

Sunk In Battle, But The War Is Not Over: Who Owns The Moskva?, Caroline Tuckett

International Law Studies

The study of underwater cultural heritage, and that of sunken warships, has typically focused on the legal protections that surround a site in the years, or often centuries, after the sinking. The Russia-Ukraine conflict has given cause to study the topic in a more modern context. Several Russian Naval vessels have been sunk by Ukraine, the most famous being the Black Sea flagship, the Moskva, in April 2022. Following the sinking, Ukraine stated the Moskva was now a heritage site, with a Ukrainian Defence Minister joking that the wreck was simply “one more diving spot.”

This article will examine …

Safeguarding Submarine Cables And Pipelines In Times Of Peace And War, Raul (Pete) Pedrozo

International Law Studies

Incidents involving damage to undersea infrastructure illustrate the vulnerability of submarine cables and pipelines. While damage can occur accidentally in peacetime, recent incidents suggest cables and pipelines are being systematically targeted and that the resulting damage is not accidental or the result of poor seamanship. Most undersea infrastructure can also be attacked as a military objective in wartime. Peacetime adversaries or opposing belligerents during an armed conflict can easily damage undersea infrastructure to further their political, strategic, or wartime objectives. These incidents also highlight the inadequacy of coastal State authority under international law to take measures against foreign-flagged vessels intentionally …

Maritime Autonomy And Liability: Navigating Uncharted Waters, Manal Cheema, Ariel Sarandinaki

International Law Studies

For centuries, people have voyaged the seas, structuring international and domestic law around the premise that people crew ships. However, that premise is no longer guaranteed as unmanned systems and vessels begin to embark on the waters. As the international community and U.S. legislators grapple with whether the law of the sea and domestic maritime law must adapt to accommodate the newest seafarers, it becomes evident that they need to be fully prepared to answer questions of liability and responsibility regarding unmanned vessels. This will become especially apparent when unmanned vessels collide with manned or other unmanned vessels. This article …

Maritime Incidents In The South China Sea: Measures Of Law Enforcement Or Use Of Force?, Aurel Sari

International Law Studies

China has sought to extend its control over the South China Sea at the expense of neighboring countries. In pursuing its goals, Beijing adopts a “power and law” approach, claiming extensive territorial and maritime rights in contravention of the UN Convention on the Law of the Sea and asserting these rights through coercive action in disputed waters. A key element of China’s strategy involves the use of coast guard and maritime militia vessels in an effort to portray its operations as measures of law enforcement, rather than displays of coercive power.

This article argues that the Chinese narrative of law …

Narrowing “The Gap”: Counter Gray Zone Operations, Raul (Pete) Pedrozo

International Law Studies

China is exploiting "The Gap" by conducting provocative Gray Zone operations to challenge its neighbors' sovereignty and sovereign rights, as well as their navigational rights and freedoms, in waters off their coast in the East China Sea, Taiwan Strait, and South China Sea. By engaging in malign activities that fall below the threshold of an "armed attack," China anticipates it can incrementally advance its interests without eliciting a military response from the targeted States. Diplomatic protests and third-party dispute settlement have not convinced China to halt its aggressive behavior. This article suggests States should use non-lethal counter-piracy tactics, techniques, and …

Unclos And The Law Of Occupation: On The Rights And Duties Of Occupying States In Maritime Areas, Louis Mcdonough Monroy

International Law Studies

As of today, the framework of ocean governance of coastal maritime areas created by the United Nations Convention on the Law of the Sea (UNCLOS) is well understood and accepted by the international community. However, there are large and important areas of ocean space around the world that are subject to a more nuanced framework of interrelated norms. These are maritime areas that have come under the effective control of occupying States, often through the use of force. As such, the legal framework applicable to these maritime areas is that of the law of occupation. Nevertheless, because of the specificities …

Cyberspace And The Jus Ad Bellum: The State Of Play, Michael N. Schmitt, Anusha S. Pakkam

International Law Studies

This article examines how States are interpreting one aspect of the international law governing cyber activities, the jus ad bellum. The article focuses on two issues: (1) the prohibition on the use of force found in Article 2(4) of the UN Charter, and (2) the right of self-defense in Article 51. The critical unsettled question regarding the first issue is the threshold at which a hostile cyber operation can be characterized as a “use of force” subject to the prohibition of Article 2(4). Concerning the second issue, a number of unresolved questions plague the application of the right of …

Annotated Supplement To The Commander's Handbook On The Law Of Naval Operations

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

Chapter 2: International Status And Navigation Of Military Vessels And Military Aircraft

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

Chapter 4: Safeguarding U.S. National Interests In The Maritime Environment

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

Chapter 9: Conventional Weapons And Weapons Systems

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

Chapter 5: Principles And Sources Of The Law Of Armed Conflict

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

Chapter 8: The Law Of Targeting

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

Chapter 6: Adherence And Enforcement

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

Chapter 7: The Law Of Neutrality

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

Chapter 12: Deception During Armed Conflict

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

Chapter 10: Chemical, Biological, Radiological, And Nuclear Weapons

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

Chapter 11: Treatment Of Detained Persons

International Law Studies

The Commander’s Handbook on the Law of Naval Operations is used in the United States and throughout the world as a restatement of U.S. doctrinal law positions on matters affecting the operations of the U.S. Navy, the U.S. Marine Corps, and the U.S. Coast Guard. Judge advocates and legal advisers have occasion to conduct deeper research to identify the context and source of the rules reflected in the Commander’s Handbook. Responding to this need, an Annotated Supplement to The Commander’s Handbook was produced in 1997 and published as volume 73 of International Law Studies. In the intervening decades, …

International Law And Acoustic Antagonism In East Asian Waters, Matt D. Montazzoli, John C. Tramazzo

International Law Studies

This article analyzes a 2023 maritime incident in which the Chinese Navy Ship (CNS) Ningbo employed active sonar in the vicinity of His Majesty’s Australian Ship (HMAS) Toowoomba, while knowing that Toowoomba had divers in the water. The Chinese sonar caused injuries to the Australian divers. The article discusses the employment of acoustic devices to cause harm during peacetime and analyzes whether CNS Ningbo’s actions constituted a failure of "due regard" and other applicable legal regimes and norms. The article concludes that CNS Ningbo’s actions were an unlawful use of force and failed to demonstrate due regard, and that …

Ai Warfare And The Law, Bill Boothby

International Law Studies

AI Warfare and the Law, published as a full volume of International Law Studies, analyzes the legal implications of the introduction of AI technologies into the design of weapon systems and the potential use of AI in connection with military activities. It considers several discrete but related bodies of international law as well as significant aspects of domestic and human rights law. Its key aim is to work out how the law will impact the use of AI technologies and what AI technologies must be able to do if they are to satisfy legal requirements. A further purpose …

Naval War College Situation: Conflict In Gregoria And Tanaka: The Law Of Targeting, Project Director: Michael N. Schmitt

International Law Studies

This article addresses complex law of armed conflict (LOAC) issues posed by a scenario with eight “situations” examined during a tabletop workshop conducted by the U.S. Naval War College’s Stockton Center for International Law. Participants included judge advocates from the United States and uniformed legal advisors from Israel, the Netherlands, and the United Kingdom, all of whom had extensive experience providing legal advice on targeting. Also included were academics with particular expertise in the law of armed conflict. The situations were drafted to reflect situations some of the participants had faced in international or non-international armed conflict.

The scenario involves …