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Awakening The Law Of Contraband In The Russia-Ukraine Conflict, Martin Fink

International Law Studies

Following the collapse of the Black Sea Grain Initiative, both Russia and Ukraine announced measures against shipping that may have introduced counter-contraband operations into the maritime dimension of the Russia-Ukraine conflict. The law of contraband, which is at the heart of the law of naval warfare, regulates such operations. The law of contraband has, however, not been often used in current conflicts and some of its details are not crystalized as generally accepted law. Awakening this instrument in the current conflict brings questions for both belligerents and non-State parties, some of whom have adopted a position of qualified neutrality that …

Law Enforcement Measures Against Chinese Maritime Militia, Kentaro Furuya

International Law Studies

This article undertakes a comprehensive legal assessment of Chinese maritime militia vessels and their operations, employing a law enforcement perspective as the analytical lens. During peacetime, those vessels engage in fishing and low-intensity military activities but during armed conflict they transition to tasks like reconnaissance. Notably, these maritime militias are frequently deployed in what is commonly termed as "gray zone" scenarios, which lack a clearly defined designation as either peacetime or armed conflict. Their principal objective lies in asserting territorial claims without resorting to full-scale armed conflict. This article delves into an exploration of the legal status accorded to these …

Does International Humanitarian Law Confer Undue Legitimacy On Violence In War?, Kieran R.J. Tinkler

International Law Studies

International humanitarian law is lauded as a civilizing force that seeks to limit the effects of war for humanitarian reasons. There is, however, an increasing sense that IHL has facilitated rather than restrained military operations by conferring undue legitimacy on violence in war. This article focuses on the nature of the relationship between legitimacy and IHL to ascertain whether this is indeed the case. It concludes that, while IHL alone cannot confer "normative legitimacy" on battlefield conduct, it does frame "empirical legitimacy." Whether such legitimacy is unwarranted is, ultimately, best judged by reference to morality. Yet insistence on the pre-eminence …

China’S New Law On Foreign Relations: Transforming The Rules-Based International Order With Chinese Characteristics, Raul (Pete) Pedrozo

International Law Studies

In 2023 China adopted a comprehensive Law on Foreign Relations. Although the law is intended to shape China’s diplomatic relations and its cultural, economic, and other exchanges, as well as China’s relations with the United Nations and other international organizations, implementation of the law will be guided by (inter alia) Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era. The law makes clear that China’s foreign relations will be conducted to uphold its system of socialism with Chinese characteristics, safeguard its sovereignty, unification and territorial integrity, and promote its economic and social development. This revisionist “rule by …

The Legal Boundaries Of (Digital) Information Or Psychological Operations Under International Humanitarian Law, Tilman Rodenhäuser

International Law Studies

“Information operations” or “psychological operations” have long been part of armed conflicts. Among Western militaries, they are commonly understood as the employment of communication or other means to influence the views, attitudes, or behavior of adversaries or civilian populations to achieve political and military objectives. Chinese military strategy describes “psychological offense and defense” as “a combat action that uses specific information and media to influence the psychology and behavior of the target object through rational propaganda, deterrence and emotional guidance based on strategic intentions and combat missions.” Likewise, Russian military doctrine elaborates on concepts such as “psychological warfare” and on …

Prisoner Of War Status And Nationals Of A Detaining Power, W. Casey Biggerstaff, Michael N. Schmitt

International Law Studies

This article examines whether a Detaining State is obliged to recognize prisoner of war status for its own nationals under Article 4A of the 1949 Geneva Convention III. It begins with an assessment of that article from the perspective of established principles for construing treaty provisions. It then adds context to that assessment by examining relevant scholarship and State practice regarding its prescriptions before and after the Convention’s negotiation and adoption. Although it concludes that denying prisoner of war status to a national of the Detaining Power is the more persuasive interpretation of Article 4A, it concludes by highlighting the …

The Strategic Use Of Ransomware Operations As A Method Of Warfare, Jeffrey Biller

International Law Studies

This article examines the potential use and legal limitations of ransomware to achieve strategic effects in armed conflicts. Ransomware is defined here as the temporary encryption of data until some pre-condition is met to release the encryption. The article focuses on international law as applicable to a State’s use of ransomware against another State, where both are parties to an existing international armed conflict. The author finds that international humanitarian law does not currently prohibit most uses of ransomware against non-military related targets in armed conflicts. While the encryption of data may be a legal violation when it inhibits the …

Adjusting The Aperture: The International Law Case For Qualifying Unmanned Vessels As Warships, Malgorzata Materna

International Law Studies

A number of stakeholders in the international community have advocated for the establishment of restrictions on the development and acquisition of unmanned vessels capable of contributing to naval warfare. These efforts are often based on the notion that the law did not anticipate the existence and use of unmanned vessels, and therefore the drafters of applicable legal frameworks—including the longstanding international law definition of a “warship”—did not consider them. However, this article evaluates, element by element, how unmanned vessels can, should, and already do meet the requirements for the warship designation under international law, based on a reading compatible with …

The Black Sea Grain Initiative: Russia’S Strategic Blunder Or Diplomatic Coup?, Raul (Pete) Pedrozo

International Law Studies

On July 22, 2022, Ukraine, the Russian Federation, Türkiye, and the United Nations signed a groundbreaking agreement to allow for the safe transport of grain, related foodstuffs, and fertilizer from three Ukrainian ports to global markets. Concurrently, a second (lesser known) agreement was concluded between the United Nations and Russia that would allow the unimpeded export of Russian food and fertilizer (including raw materials to produce fertilizers) to world markets. These agreements were hailed as a critical solution for the impending global food crisis and the safety and security of neutral shipping in the Black Sea resulting from the Russia-Ukraine …

The Newport Manual On The Law Of Naval Warfare, James Kraska, Raul "Pete" Pedrozo, David Letts, Wolff Heintschel Von Heinegg, Rob Mclaughlin, James Farrant, Yurika Ishii, Gurpreet S. Khurana, Koki Sato

International Law Studies

This first edition of the Newport Manual has been superseded by the Newport Manual on the Law of Naval Warfare, Second Edition, published as Volume 105 (2025) of International Law Studies.

Should Have Known Better? The Standard Of Knowledge For Command Responsibility In International Criminal Law, Roee Bloch

International Law Studies

The criminal doctrine of command responsibility has a rich legal history, which makes it a widely recognized, if unsettled, concept of international criminal law. This article focuses on a key element of command responsibility: the commander’s knowledge of a subordinate's crimes. This article argues that current customary law instructs to apply a standard of actual knowledge of the commander, rather than the lower standard of constructive knowledge. The article reaches this conclusion by observing the primary shaping factor of international law—State behavior. Through the example of six diverse legal systems, the article demonstrates how the approach of legislative, executive, and …

Aid And Assistance As A “Use Of Force” Under The Jus Ad Bellum, Michael N. Schmitt, W. Casey Biggerstaff

International Law Studies

Although the prohibition of the use of force is a cornerstone of international law, our understanding of what constitutes a “use of force” under Article 2(4) of the UN Charter nonetheless continues to evolve. While the term was traditionally understood to mean armed force, emerging interpretations are expanding our understanding of the prohibition’s breadth. The Charter’s text, travaux préparatoires, and subsequent interpretations and practice by States, reinforced by the persuasive reasoning of the International Court of Justice, all confirm that the notion of force extends to indirect force, which includes military support provided to parties to a conflict. Yet, to …

The Shadow Of Success: How International Criminal Law Has Come To Shape The Battlefield, Gabriella Blum

International Law Studies

The rise of international criminal law (ICL) has undoubtedly contributed to the development and enforcement of international humanitarian law (IHL). Yet, there are also important and oft-overlooked ways in which it has done the opposite. By labeling certain violations of the laws of war as “criminal” and setting up dedicated mechanisms for prosecution and punishment of offenders, the content, practice, and logic of ICL are displacing those of IHL. With its doctrinal precision, elaborate institutions, and the seemingly irresistible claim of political and moral priority, ICL is overshadowing the more diffuse, less institutionalized, and more difficult to enforce IHL.

But …

Malware, A Device Under The 1988 Sua Convention, Michael Petta

International Law Studies

In 1988 the International Maritime Organization modernized international law in response to a vexing problem of the time—maritime terrorism. Before then, not all violent crimes against vessels amounted to piracy and therefore many maritime criminals escaped justice. To close this gap and facilitate the prosecution of those who endanger navigation, IMO member States enacted the 1988 Convention for the Suppression of Unlawful Acts Against the Safety of Maritime Navigation. More than three decades later, the 1988 SUA Convention may be useful to address a more modern problem—cyberattacks against commercial vessels. The 1988 treaty prohibits various acts against shipping, including the …

Russia-Ukraine Conflict: The War At Sea, Raul (Pete) Pedrozo

International Law Studies

Although much has been written about the Russia-Ukraine conflict, most writings have focused on land warfare. This article explores the conflict at sea and a host of legal issues arising from that aspect of the conflict. The article begins with a discussion of a series of events at sea that preceded the Russian invasion in 2022, including the Kerch Strait incidents and interference with freedom of navigation in the Black Sea. It then discusses multiple post-invasion legal issues involving the war at sea, including access to the Black Sea, maritime exclusion zones, naval mines, naval bombardment, unmanned maritime systems, targeting …

The Legal Framework Applicable To Intrusive Intelligence, Surveillance, And Reconnaissance Operations In The Air And Maritime Domains, Raul (Pete) Pedrozo

International Law Studies

The validity of intrusive intelligence, surveillance, and reconnaissance (ISR) operations in the maritime and air domains depends on the location from which the operation is conducted. Intrusive ISR conducted beyond the territorial sea and national airspace is considered an internationally lawful use of the sea that is not subject to coastal State jurisdiction or interference. Efforts by a handful of States to regulate ISR operations in and over the exclusive economic zone are clearly inconsistent with a plain reading of the United Nations Convention on the Law of the Sea and the Convention on International Civil Aviation (and their negotiating …

Manual On International Humanitarian Law For The Armed Forces Of The Russian Federation (2002)

International Law Studies

A translation of the Manual on International Humanitarian Law for the Armed Forces of the Russian Federation, 2002, by Aleksei Romanovski. This translation was originally published as Appendix 1 in Evan J. Wallach, The Law of War in the 21st Century (2017).

Some Reflections On The Threshold For International Armed Conflict And On The Application Of The Law Of Armed Conflict In Any Armed Conflict, T.D. Gill

International Law Studies

This essay discusses the threshold of application of international humanitarian law (IHL) in both international (IAC) and non-international armed conflicts (NIAC). In relation to IAC it questions whether the International Committee of the Red Cross (ICRC) “first shot” approach is the most appropriate, since it opens the way for the intensification of conflicts beyond what is necessary in relation to relatively minor armed incidents and argues that the humanitarian protection clauses of IHL should be separated from the rules governing hostilities and makes a case for the application of ad bellum considerations of necessity and proportionality to act as a …

Proportionality: Reconsidering The Application Of An Established Principle In International Law, Rüdiger Wolfrum

International Law Studies

Traditionally, the principle of proportionality is defined as limiting State action to rational and reasonable means with the view to achieve a goal permissible under international law without unduly encroaching on the protected rights of another State, States, or individuals. The principle applies to the planning, as well as the implementation, of State activities. The application of the principle of proportionality is common in national constitutional and administrative law. A vast national jurisprudence exists in this regard. However, due to the plurality of approaches in the various national legal systems, it is hardly possible to draw any general legal conclusions …

The Legal Requirement For Command And The Future Of Autonomous Military Platforms, Rain Liivoja, Eve Massingham, Simon Mckenzie

International Law Studies

Technologically advanced armed forces extensively use platforms that can be controlled remotely and do not require an on-board crew. Increasingly, these systems have the capacity to function with some degree of autonomy. The use of autonomous functionality is not specifically prohibited or regulated by the law of armed conflict but the use of autonomous functions in military systems remains governed by the general principles and rules of international law.

One existing international law concept may constrain the use of autonomous capabilities in military vessels and aircraft. This is the notion that military units must be “under the command” of an …

Neutral State Access To Ukraine’S Food Exports, James Kraska

International Law Studies

This article originally appeared in Articles of War, the online publication of the Lieber Institute at the U.S. Military Academy, May 18, 2022, https://lieber.westpoint.edu/neutral-state-access-ukraines-food-exports/.

Maritime Exclusion Zones In Armed Conflicts, Raul (Pete) Pedrozo

International Law Studies

This article originally appeared in Articles of War, the online publication of the Lieber Institute at the U.S. Military Academy, Apr. 12, 2022, https://lieber.westpoint.edu/maritime-exclusion-zones-armed-conflicts/.

The Attack On The Vasily Bekh And Targeting Logistics Ships, James Kraska

International Law Studies

This article originally appeared in Articles of War, the online publication of the Lieber Institute at the U.S. Military Academy, July 11, 2022, https://lieber.westpoint.edu/attack-vasily-bekh-targeting-logistics-ships/.

International Law Considerations For 21st Century Engagements At Sea, Vice Admiral Darse E. “Del” Crandall Jr.

International Law Studies

Keynote address by the Judge Advocate General of the U.S. Navy at the Alexander C. Cushing International Law Conference at the U.S. Naval War College, Newport, Rhode Island, May 16, 2022.

Double Classification Of Non-Consensual State Interventions: Magic Protection Or Pandora’S Box?, Pauline Lesaffre

International Law Studies

The classification under international humanitarian law of certain cross-border armed conflicts against an organized armed group remains controversial. More specifically, cross-border armed conflicts resulting from a non-consensual State intervention, such as the United States’ intervention in Syria (without Syrian consent) against the Islamic State, still divide legal scholarship regarding their appropriate classification. One theory argues for a single classification of non-international armed conflict between the intervening State and the organized armed group; another theory relies on a double classification of non-consensual State interventions, adding to the non-international armed conflict an international armed conflict between the intervening State and the territorial …

Active Resistance By Merchant Vessel Crews During International Armed Conflict Is Not “Direct Participation In Hostilities”, Robert Mclaughlin

International Law Studies

Within the land, air, and cyber conflict contexts, the concept of "civilian direct participation in hostilities" has been subject to intense scrutiny, interpretive endeavor, and operational application over the last several decades. There is a risk, however, that interpretations and applications based on this experience may inappropriately permeate the law of naval warfare, where the scope of application of this concept is considerably narrower. This is because a key difference between allocating law of armed conflict status ashore and at sea is that the law of armed conflict status of people at sea tends to follow the status of their …

The Prohibition On Intervention Under International Law And Cyber Operations, Ori Pomson

International Law Studies

Given that cyber technologies have made way for attempts to influence the affairs of other States in novel and unique ways, scholars have turned to the international legal rule which is prima facie most relevant in addressing such meddling; namely, the prohibition on intervention. Moreover, there appears to be quite a wide-ranging consensus in scholarship that the prohibition on intervention applies to a broad range of cyber operations. In contrast to such scholarship, this article argues that, under the lex lata, the prohibition on intervention only applies to acts amounting to a use of force or constituting support for …

Targeting A Satellite: Contrasting Considerations Between The Jus Ad Bellum And The Jus In Bello, Hitoshi Nasu

International Law Studies

With the development and greater availability of counter-space capabilities, satellites are becoming a prime target of military threats. However, the legal assessment for the targeting of a satellite requires careful analysis because of its impacts on terrestrial activities and the potential to affect the rights and interests of third parties when their payloads are carried by the targeted satellite. With these two unique characteristics in mind, this article unravels the complexity of international legal regimes applicable to military operations conducted against a satellite by contrasting threshold legal considerations necessary for the identification and application of relevant legal requirements under the …

Newport Rules Of Engagement Handbook

International Law Studies

The Newport Rules of Engagement Handbook is published as a guide for the development of national and multinational rules of engagement for military operations. Its purpose is to assist users in the development of ROE for training, exercises, war games, and operations.

Does The Revised U.S. South China Sea Policy Go Far Enough?, Raul (Pete) Pedrozo

International Law Studies

The United States issued a statement on July 13, 2020, outlining the U.S. Position on Maritime Claims in the South China Sea. The statement supplements existing U.S. policy for the South China Sea, making clear that the People’s Republic of China’s claims to offshore resources across most of the South China Sea are unlawful. Still, the revised U.S. policy does not go far enough to contest China's faulty claims in the South China Sea. This article proposes specific issues that the revised U.S. policy should address.