Law of Armed Conflict (LOAC)
688 Articles
Between the Law of Force and the Law of Armed Conflict
Last week, I argued in favor of the ICRC’s position that if one state uses armed force in the territory of another state then an international armed conflict (IAC) arises between…
De Facto and De Jure Non-International Armed Conflicts: Is It Time to Topple Tadić?
When does violence between a state and non-state actor constitute an armed conflict and thus trigger the system of legal rules that apply in non-international armed conflict (NIAC)?…
Whose Armed Conflict? Which Law of Armed Conflict?
When one state, say, the United States, uses military force on the territory of another state, say, Syria or Pakistan, without the consent of that state, what legal rules constrain…

Triggers and Thresholds of Non-International Armed Conflict
When and where does the law of non-international armed conflict apply? Since most contemporary armed conflicts are fought between states and organized armed groups, or between…
Two U.S. Positions on the Duty to Ensure Respect for the Geneva Conventions
When should the U.S. government reverse a previous U.S. interpretation of a treaty? Should there be a presumption against doing so, and what process and substantive reasons should…
Just Security’s Questions for Clinton and Trump
Given the importance of tonight’s prime-time debate between US presidential candidates Hillary Clinton and Donald Trump, we’re again running our list of vital national…
Are the U.S. and U.K. parties to the Saudi-led armed conflict against the Houthis in Yemen?
A series of posts at Just Security have focused on the rules that apply to U.S. and U.K. support for the Saudi-led coalition’s military operations against the Houthi rebels…
Trump’s Calls to Pillage Iraqi Oil
In his appearance with Secretary Clinton at NBC’s Commander-in-Chief Forum earlier this month, Donald Trump called for actions that amount to a war crime. Addressing US policies…
The Updated First Geneva Convention Commentary, DOD’s Law of War Manual, and a More Perfect Law of War: Part III
This third post of a series on the ICRC’s Updated Commentary on the First Geneva Convention of 1949 offers some concluding observations and further comparisons with the recent…
Weapon, Combatant, Child, Animal: They’re All Insufficient Analogies for Autonomous Weapon Systems
Autonomous weapon systems, that is, weapon systems capable of independently selecting and engaging targets, are usually portrayed in one of two ways. Either they are depicted as…

Explainer: What Mental State is Required to Commit a War Crime?
What exactly is the definition of war crimes under international law or, more precisely, what mental state is required to commit such an offence? The synopsis below provides an…
The ICRC Updated Commentaries: Reconciling Form and Substance, Part II
Last week, I left off my exploration of the International Committee of the Red Cross’s (ICRC) 2016 Updated Commentaries on the First Geneva Convention of 1949 by asking…