International Humanitarian Law Commons^™

Attacks On Merchant Vessels Under The Law Of Economic Naval Warfare And Protection Of The Marine Environment: Lessons From The Russia-Ukraine War And The U.S.-Iran War, Alexander Lott

International Law Studies

This article examines the legality of attacks on merchant vessels during international armed conflicts, using reported Russian, Ukrainian, Iranian, and United States attacks between 2022 and 2026 as case studies. It evaluates belligerent rights to visit and search, divert, seize, disable, or, exceptionally, destroy merchant vessels under customary law. Drawing primarily on State practice, the study compares Russia’s blockade of Ukraine, Iran’s closure of the Strait of Hormuz, and the United States’ blockade of Iran. The emerging concept of a de facto blockade and its fusion with warning zones creates legal uncertainty and undermines humanitarian protection.

The legality of Iranian …

Chapter 4: Untangling The “Legal Vortex”: Transit, Tolls, And Truce In The Strait Of Hormuz, James Kraska

International Law Studies

No abstract provided.

Chapter 3: Blockade, Prize, And Targeting: The Revival Of Economic Warfare In Operation Epic Fury, James Kraska

International Law Studies

No abstract provided.

Chapter 1: Sanctions And The Shadow Fleet: Terrorism Forfeiture And Operation Economic Fury, James Kraska

International Law Studies

No abstract provided.

International Law Situations: Internment Of Belligerent Forces, Raul (Pete) Pedrozo

International Law Studies

This Situation examines the duty of neutral States to detain belligerent warships, their officers, and crews during an international armed conflict. At the outset of the armed conflict between the United States and Iran, Iranian warships sought refuge in India and Sri Lanka following the sinking of the Iranian frigate IRIS Dena. India and Sri Lanka, as neutrals, have a duty to detain those warships and their officers and crews for the duration of the armed conflict and take appropriate measures to render the ships and their personnel incapable of taking to sea during the conflict.

International Law Situations: Economic Warfare At Sea, Raul (Pete) Pedrozo

International Law Studies

This Situation examines what measures belligerents may take against enemy and neutral merchant ships at sea during an international armed conflict. Operation Epic Fury serves as the backdrop to demonstrate the applicability of economic warfare during international armed conflict at sea. Iranian-flagged and Guyanese-flagged vessels are operating in service of the Iranian economy and war effort. These ships may be captured as part of U.S. economic warfare against Iran.

International Law Situations: Blockade, Raul (Pete) Pedrozo

International Law Studies

This Situation examines the right of belligerents to establish and enforce a blockade and the right to conduct visit and search of enemy and neutral merchant ships globally outside neutral waters.

Technology-Based Challenges To The Law Applicable To Trade Interdiction During Armed Conflict At Sea: The Law Of Naval Warfare And Convoy Operations, Rob Mclaughlin

International Law Studies

The practice of convoy involves the concentration of a group of merchant vessels under the control and direction of warships and military aircraft for the purpose of protecting it from belligerent capture or attack. The practice has often been described as obsolete, but asserting the demise of the convoy has been as regular as it has been premature. It is fitting that this operational practice be subject to an updated legal treatment and identification of new legal challenges. This article seeks to reassess the law applicable to convoys based on the consequences of certain post-1945 technological developments. It notes that …

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 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 1: Legal Divisions Of The Oceans And Airspace

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 3: Protection Of Persons And Property At Sea And Maritime Law 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 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 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 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 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 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 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, …

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 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, …

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 …

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/.

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 …

Booty, Bounty, Blockade, And Prize: Time To Reevaluate The Law, Andrew Clapham

International Law Studies

This article considers the so-called belligerent rights of States in times of war. In particular it focuses on booty of war, blockade, and the capture of merchant ships and their cargo. It is suggested that, while the rules may not often be applied today, they nevertheless continue to exert a certain influence, contributing to confusion about the boundaries of the legitimate use of force and a blurring of the distinction between military objectives and civilian objects.

Considering that the UN Charter has outlawed the use of force, the article also questions why such rules concerning capture should continue to have …

China’S Container Missile Deployments Could Violate The Law Of Naval Warfare, Raul (Pete) Pedrozo

International Law Studies

China is reportedly developing long-range cruise missiles that can be fired from standard shipping containers loaded on merchant vessels. China is also converting heavy-lift civilian ships and roll-on roll-off (RORO) ferries to serve as de facto amphibious assault ships to support People’s Liberation Army (PLA) amphibious operations. While none of these activities are illegal per se, they do raise potential concerns under the law of naval warfare. Only warships can engage in offensive belligerent rights during an international armed conflict. Using merchant vessels to engage in belligerent rights would violate international law unless China first converts the vessels into warships …

Neutrality And Cyberspace: Bridging The Gap Between Theory And Reality, Noam Neuman

International Law Studies

While there exists a broad consensus among States that international law generally applies to the cyber domain, particular views regarding the applicability of the law of neutrality have rarely been put forward, and presently there seems to be insufficient State practice and domain-specific opinio juris in this regard. Against this backdrop, several attempts have been made throughout the years to apply certain neutrality rules to cyberspace by referring to analogies from other domains. However, this legal regime provides an emblematic example of what the introduction of traditional rules of international law, formulated with the physical domains of warfare in mind, …

The Legal Characterization Of Lethal Autonomous Maritime Systems: Warship, Torpedo, Or Naval Mine?, Hitoshi Nasu, David Letts

International Law Studies

With the rapid advances in autonomous navigation and artificial intelligence technology, naval industries are edging closer to the development of unmanned maritime platforms with lethal autonomous capability—lethal autonomous maritime systems (LAMS). The emergence of LAMS as a sui generis hybrid weapon system will almost certainly generate disagreement on their legal status. Currently, there is no agreement among States as to whether LAMS should legally be characterized as warships or other means of warfare, such as torpedoes and naval mines. This lack of certainty represents a significant deficiency with potential strategic and operational implications if left unresolved. To assist States in …

Can We Starve The Civilians? Exploring The Dichotomy Between The Traditional Law Of Maritime Blockade And Humanitarian Initiatives, Phillip J. Drew

International Law Studies

The contemporary practice of maritime blockade can trace its origins to the Dutch Placaat of 1564, under which the Dutch Navy enforced the closure of Spanish ports to maritime traffic, both inbound and outbound. Although originally designed to stop all military reinforcements from reaching an area, in the ensuing 450 years, blockade has developed into a method of warfare whose effects are primarily economic. As a result of the urbanization of much of the world’s population over the past 200 years, many States have become heavily reliant on imported foodstuffs and commodities, most of which moves by sea. When those …

Classification Of Cyber Capabilities And Operations As Weapons, Means, Or Methods Of Warfare, Jeffrey T. Biller, Michael N. Schmitt

International Law Studies

Despite several persistent controversies regarding how international law applies to cyber operations during an armed conflict, general understanding of the law in this domain is maturing. Reasoning by analogy to non-cyber application and interpretation of international law underlies much of the progress. Yet, although preexisting normative structures and legal terminology enable legal advisors and scholars to usefully draw upon previously acquired experience and understanding, there are obstacles to definitive analogizing that result from fundamental differences between cyber and kinetic operations. The number of imperfect analogies that underlie some of the normative uncertainty in the field underscores this point.

One key …