Law Commons^™

“Unwilling Or Unable”, Lucy V. Jordan

International Law Studies

Critics of the unwilling or unable doctrine suggest that it could undermine the United Nations collective security system and argue that it requires an unacceptable ceding of a State’s territorial sovereignty. Increased reliance on the doctrine following the terrorist attacks of 9/11, particularly in relation to the use of force against ISIL in Syria since 2014, has caused the doctrine to face significant scrutiny. The purpose of this article is to ascertain whether the unwilling or unable doctrine has reached customary international law status. If found to be the case, the doctrine would confirm the right of States to act …

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 …

Military Action To Recover Occupied Land: Lawful Self-Defense Or Prohibited Use Of Force? The 2020 Nagorno-Karabakh Conflict Revisited, Tom Ruys, Felipe Rodriguez Silvestre

International Law Studies

In September 2020, heavy fighting erupted between Armenia and Azerbaijan in and around Nagorno-Karabakh, a region of Azerbaijan long controlled by Armenia. After two months of military confrontations, a tripartite ceasefire was concluded, drastically altering the pre-existing territorial status quo.

The "Second Nagorno-Karabakh War" brings to light a fundamental question for international law on the use of force—and one that has received limited attention in legal doctrine. The question is this: when part of a State’s territory is occupied by another State for an extended period of time, can the former still invoke the right of self-defense to justify …

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 …

The Unlawfulness Of A “Bloody Nose Strike” On North Korea, Kevin Jon Heller

International Law Studies

The United States has reportedly been debating whether to "react to some nuclear or missile test with a targeted strike against a North Korean facility to bloody Pyongyang’s nose and illustrate the high price the regime could pay for its behavior." This article asks a simple question: would such a “bloody nose strike” (BNS) violate the jus ad bellum?

Providing a coherent answer is complicated by the lack of clarity surrounding the United States’ planning. In particular, the U.S. government has not specified what kind of provocation it believes would justify launching a BNS, has not identified precisely what …

Twelve Key Questions On Self-Defense Against Non-State Actors, Terry D. Gill, Kinga Tibori-Szabó

International Law Studies

This article examines the most pertinent questions relating to the applicability of the right of self-defense to attacks conducted by non-State armed groups (NSAGs) acting independently of State control from the territory of one or more States against the territory of another State. These questions are approached from the perspective of legality (does the right of self-defense apply to attacks not mounted by or under the control of a State) and modality (assuming the applicability of self-defense to such attacks; how do the principles of necessity, proportionality and immediacy affect its application)? Starting with an assessment of the place of …

Adverse Cyber Operations: Causality, Attribution, Evidence, And Due Diligence, Hans-Georg Dederer, Tassilo Singer

International Law Studies

Adverse cyber operations against States are on the rise, and so are the legal challenges related to such incidents under public international law. This article will not delve into already intensely debated problems of classification, such as whether adverse cyber operations constitute “armed attacks” or “use of force.” Rather, the article will focus on causality and attribution with special regard to problems of evidence. In particular, the article will elaborate on the applicable standards of proof to be met by the victim State when submitting, or having to submit, evidence to justify self-defense or countermeasures against the State of origin. …

Syria: Can International Law Cope? Workshop Report, Christopher M. Ford

International Law Studies

The Stockton Center for the Study of International Law at the U.S. Naval War College and the Center for the Rule of Law at the U.S. Military Academy convened a three-day workshop in November 2015. The workshop sought to examine the question posed by its title: Can International Law Cope with the Situation in Syria? It is a question that has ramifications for the viability of international law well beyond the confines of events in Syria. This report surveys the key issues that were raised during the workshop and serves as an introduction to the articles that follow in this …

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 …

International Law, Legal Diplomacy, And The Counter-Isil Campaign: Some Observations, Brian Egan

International Law Studies

Speech as prepared for delivery by Brian Egan, Legal Adviser, U.S. Department of State; 110th Annual Meeting of the American Society of International Law Washington, DC, April 1, 2016

The Doctrine Of Legitimate Defense, Jens Ohlin

International Law Studies

The following article reorients mainstream conceptions of self-defense by defending a broader doctrine of legitimate defense that, in limited circumstances, justifies unilateral intervention. The source of the doctrine is natural law, which was explicitly incorporated into the text of UN Charter Article 51. The effect of this incorporation was to preserve, as a carve-out from the prohibition against force in Article 2, the natural law rights of defensive force. Specifically, the Article concludes that defensive force under natural law included, in extreme situations, a right of intervention in rogue States that refused to comply with natural law.

Defensive Force Against Non-State Actors: The State Of Play, Monica Hakimi

International Law Studies

This article assesses the implications of the current Syria situation for the international law on the use of defensive force against non-State actors. The law in this area is highly unsettled, with multiple legal positions in play. After mapping the legal terrain, the article shows that the Syria situation accentuates three preexisting trends. First, the claim that international law absolutely prohibits the use of defensive force against non-State actors is increasingly difficult to sustain. States, on the whole, have supported the operation against the so-called Islamic State in Syria. Second, States still have not coalesced around a legal standard on …

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.

Self-Defensive Force Against Cyber Attacks: Legal, Strategic And Political Dimensions, Matthew C. Waxman

International Law Studies

No abstract provided.

International Law And Cyber Threats From Non-State Actors, Laurie R. Blank

International Law Studies

No abstract provided.

Combating Terrorist: Legal Challenges In The Post-9/11 World, Nicholas Rostow

International Law Studies

No abstract provided.

Cyber Attacks As "Force" Under Un Charter Article 2(4), Matthew C. Waxman

International Law Studies

No abstract provided.

Was The 2003 Invasion Of Iraq Legal?, Andru E. Wall

International Law Studies

No abstract provided.

Iraq And The "Fog Of Law", John F. Murphy

International Law Studies

No abstract provided.

Legal Considerations In Relation To Maritime Operations Against Iraq, Neil Brown

International Law Studies

No abstract provided.

"Change Direction" 2006: Israeli Operations In Lebanon And The International Law Of Self-Defense, Michael N. Schmitt

International Law Studies

No abstract provided.

Preemption By Armed Force Of Trans-Boundry Terrorist Threats: The Russian Perspective, Bakhtiyar R. Tuzmukhamedov

International Law Studies

No abstract provided.

Using Force Lawfully In The 21st Century, David B. Rivkin Jr., Lee A. Casey

International Law Studies

No abstract provided.

The Proliferation Security Initiative In The Maritime Domain, Stuart Kaye

International Law Studies

No abstract provided.

The Right Of Self-Defense In The Global Fight Against Terrorism, Christopher Muller

International Law Studies

No abstract provided.

Targeting And Humanitarian Law: Current Issues, Michael N. Schmitt

International Law Studies

No abstract provided.

International Law And The 2003 Campaign Against Iraq, Nicholas Rostow

International Law Studies

No abstract provided.

Panel I Commentary - Jus Ad Bellum

International Law Studies

No abstract provided.

Terrorism And The Use Of Force In International Law, Michael Schmitt

International Law Studies

No abstract provided.

Panel I Commentary - Jus Ad Bellum, William Dalton

International Law Studies

No abstract provided.