proportionality

Legal analysis of Israel's operation to kill or capture every individual involved in the October 7th massacre.

When war affects complex and interconnected civilian systems, the full measure of civilian harm lies in what comes after the blast.

Leading scholar explains just war theory and the Iran war. An assessment of the Trump administration's response to the Catholic Church.

Leading expert on U.S. legal reviews of new weapons systems discusses Precision Strike Missiles deployed in Iran war.

Leading legal experts' Q&A analyzes how the law of armed conflict applies to U.S., Israeli, and Iranian strikes - with a focus on targeting rules and civilian protections.

The law of armed conflict demands that we take the Minab school strike seriously to learn, to reform, and to prevent the next failure.

The relationship between regime change and IHL is of inherent tension, incentivizing battlefields where the law is viewed as an obstacle rather than an essential constraint.

New Commentary on GC IV describes Article 23—the treaty’s key provision governing the duty to allow the passage of essentials to civilians—as "significantly diminished" today.

Israel's practice of statistical proportionality should be considered to violate the legal duty to take feasible precautions in attacks.

Understanding jus ad bellum necessity and proportionality is crucial to addressing concerns regarding the weaponization of outer space.

The exploding pagers in Lebanon raise a number of factual and legal questions related to the obligations of the attacker under the law of armed conflict.

In his thought-provoking essay in Just Security, Chris O’Meara provides an insightful analysis of Ukraine’s recent incursion into Kursk Oblast under the law governing the use…