International Humanitarian Law Commons^™

The Plea Of Necessity: An Oft Overlooked Response Option To Hostile Cyber Operations, Louise Arimatsu, Michael N. Schmitt

International Law Studies

States are increasingly focused on the measures—cyber or otherwise—that they can take in response to hostile cyber operations. Although cyber operations are usually responded to with acts of “retorsion” (acts that are lawful, although unfriendly), international law recognizes other self-help mechanisms that allow for more robust responses. In the cyber context, most attention has focused on countermeasures and self-defense. Yet, both are subject to various limitations that constrain their availability.

This article examines a further option, the so-called “plea of necessity.” It allows States to respond to a hostile cyber operation when the action taken would otherwise be unlawful but …

Application Of The Due Diligence Principle To Cyber Operations, Tomohiro Mikanagi

International Law Studies

The discreet use of proxies by States renders it difficult to prove attribution to States under the existing rules of attribution. On the other hand, the due diligence principle, if applicable, does not require attribution but can lead to the invocation of State responsibility for cyber operations emanating from the territory of other States. In the Corfu Channel judgment the ICJ recognized “every State’s obligation not to allow knowingly its territory to be used for acts contrary to the rights of other States,” and UN Member States agreed that existing international law applies to cyber operations. However, the UN Members …

Command Accountability For Ai Weapon Systems In The Law Of Armed Conflict, James Kraska

International Law Studies

The use of artificial intelligence (AI) in weapon systems enhances the ability of operational forces to fuse multispectral sensors to understand the warfighting environment, positively identify, track, and select targets, and engage them with the most appropriate effects. The potential for AI to help close the “kill chain” has raised concern that this creates a gap in accountability between the decisions of humans and the acts of machines, with humans no longer accountable for decisions made during armed conflict. This study suggests that there is no gap because the military commander is always directly and individually accountable for the employment …

Armed Conflicts In Outer Space: Which Law Applies?, Frans G. Von Der Dunk

International Law Studies

So far, outer space has merely become involved in terrestrial armed conflicts as part of the supportive infrastructure for military activities. Unfortunately, the risk that this changes is considerably growing, and it can no longer be excluded that (armed) force will become used in outer space, either directed towards Earth or within outer space itself.

This raises serious issues in the legal context, where space law so far has been premised on the hope that armed conflicts in outer space could be avoided whereas the law of armed conflict was not required so far to deal with the use of …

Responding To Hostile Cyber Operations: The “In-Kind” Option, Michael N. Schmitt, Durward E. Johnson

International Law Studies

Facing hostile cyber operations, States are crafting responsive strategies, tactics and rules of engagement. One of the major challenges in doing so is that key aspects of the international law governing cyber responses are vague, unsettled or complex. Not surprisingly, therefore, international law is markedly absent from strategies and operational concepts. Rather, they tend to take on a practical “tit-for-tat” feel as policymakers logically view “in-kind” responses as “fair play.” For them, responding in-kind surely must be lawful notwithstanding any challenges in discerning the precise legal character of the initial hostile cyber operation.

Testing that sense, this article examines the …

Will Cyber Autonomy Undercut Democratic Accountability?, Ashley Deeks

International Law Studies

In recent years, legislative bodies such as the U.S. Congress and the U.K. Parliament have struggled to maintain a role for themselves in government decisions to conduct military operations against foreign adversaries. Some of these challenges arise from constitutional structures, but they are also due to the changing nature of conflict: a shift away from large-scale kinetic operations and toward smaller-scale operations—including cyber operations—that are less visible and that do not require robust legislative support. These modern operations leave legislatures to engage in ex post and sometimes ineffective efforts to hold their executive branches accountable for international uses of force …

The Future Of U.S. Detention Under International Law: Workshop Report, International Committee Of The Red Cross (Icrc), Harvard Law School Program On International Law And Armed Conflict (Hls Pilac), Stockton Center For The Study Of International Law (U.S. Naval War College)

International Law Studies

The International Committee of the Red Cross Regional Delegation for the United States and Canada, the Harvard Law School Program on International Law and Armed Conflict, and the Stockton Center for the Study of International Law at the U.S. Naval War College recently hosted a workshop titled Global Battlefields: The Future of U.S. Detention under International Law. The workshop was designed to facilitate discussion on international law issues pertaining to U.S. detention practices and policies in armed conflict. Workshop participants included members of government, legal experts, practitioners and scholars from a variety of countries. This report attempts to capture the …

Fragmented Wars: Multi-Territorial Military Operations Against Armed Groups, Noam Lubell

International Law Studies

Recent years have seen the emergence of significant legal debate surrounding the use of force against armed groups located in other States. With time, it has become clear that in many cases such operations are not confined to the territory of one other State, but expand to encompass multiple territories and often more than one armed group. This article examines multi-territorial conflicts with armed groups through the lens of several legal frameworks. Among other topics, it analyses the questions surrounding the extension of self-defense into multiple territories, the classification of the hostilities with the group and between involved States, the …

A Human Rights Perspective To Global Battlefield Detention: Time To Reconsider Indefinite Detention, Yuval Shany

International Law Studies

This article discusses one principal challenge to detention without trial of suspected international terrorists—the international human rights law (IHRL) norm requiring the introduction of an upper limit on the duration of security detention in order to render it not indefinite in length. Part One of this article describes the “hardline” position on security detention, adopted by the United States in the immediate aftermath of the 9/11 terror attacks (followed, with certain variations, by other countries, including the United Kingdom and the State of Israel), according to which international terrorism suspects can be deprived of their liberty without trial for the …

The Limits Of Inviolability: The Parameters For Protection Of United Nations Facilities During Armed Conflict, Laurie R. Blank

International Law Studies

This article examines the international legal protections for United Nations humanitarian assistance and other civilian facilities during armed conflict, including under general international law, setting forth the immunities of the United Nations, and the law of armed conflict (LOAC), the relevant legal framework during wartime. Recent conflicts highlight three primary issues: (1) collateral damage to UN facilities as a consequence of strikes on military objectives nearby and military operations in the immediate vicinity; (2) the misuse of UN facilities for military purposes; and (3) direct attacks on fighters, weapons or other equipment that cause damage to such facilities. To identify …

Japan’S 2015 Security Legislation: Challenges To Its Implementation Under International Law, Hitoshi Nasu

International Law Studies

Japan’s new security legislation, enacted on September 30, 2015 amid fierce debate over its constitutionality, is designed to enable a “seamless response” to any security situation that may arise. While public debate has been fixated on the re-interpretation of Article 9 of the Japanese Constitution, which underpins the theoretical foundation of this new legislation, there are also important international law issues that need to be addressed. After briefly reviewing the historical background leading to the adoption of the new security legislation and its contents, this article examines how the Self-Defense Force (SDF) can respond with the use of force to …

Law, Rhetoric, Strategy: Russia And Self-Determination Before And After Crimea, Christopher J. Borgen

International Law Studies

The article considers how and why Russia has used international legal arguments concerning self-determination in relation to its intervention in Ukraine. Of what use is legal rhetoric in the midst of politico-military conflict? The article reviews the laws of self-determination and territorial integrity and considers Russia’s changing arguments concerning these concepts over the cases of Kosovo, South Ossetia, and Ukraine. Inasmuch as international law is the vocabulary and the grammar of modern diplomacy, States may use legal rhetoric with multiple audiences in mind. While the shifts in Russia’s arguments may be due to strategic needs in specific conflicts, the legal …

Charting The Legal Geography Of Non-International Armed Conflict, Michael N. Schmitt

International Law Studies

This article examines the geographical reach of international humanitarian law (law of armed conflict), particularly during armed conflicts between States and non-State organized armed groups. The issue is operationally critical, since to the extent that IHL applies, practices which are lawful during armed conflicts, such as status-based targeting, may be employed. When IHL does not apply, human rights obligations shouldered by the State govern the conduct of its military operations. The article surveys the various approaches to the the legal geography of non-international armed conflict, arguing that an interpretation by which IHL is not geographically restricted is the most supportable.

Computer Network Operations And U.S. Domestic Law: An Overview, Robert N. Chesney

International Law Studies

No abstract provided.

The National Executive And The Use Of The Armed Forces Abroad, John Norton Moore

International Law Studies

No abstract provided.