Non-international Armed Conflict

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The Law on Targeting Shipwrecked Drug Traffickers: Expert Backgrounder

Detailing how, under different scenarios, international law and U.S. past practices apply to Sept. 2 boat strike on survivors.
WASHINGTON, DC - JUNE 18: U.S. Secretary of Defense Pete Hegseth arrives to testify before the Senate Armed Services Committee in the Dirksen Senate Office Building on June 18, 2025 in Washington, DC. The Committee met to hear testimony on the proposed budget request for fiscal year 2026 and the future year's defense program for the Department of Defense. (Photo by Kayla Bartkowski/Getty Images)

U.S. Boat Strike Campaign: Questions Congress Should Ask Executive Branch Officials

A list of questions that should be answered by U.S. government officials regarding the lethal campaign against suspected drug trafficking individuals, groups, and vessels.
WASHINGTON, DC - DECEMBER 02: U.S. Secretary of Defense Pete Hegseth (R) looks on as U.S. President Donald Trump speaks during a meeting of his Cabinet in the Cabinet Room of the White House on December 02, 2025 in Washington, DC. (Photo by Chip Somodevilla/Getty Images)

Expert Q&A on the U.S. Boat Strikes

An expert Q&A on the Trump administration's lethal strikes against suspected drug trafficking boats on the high seas.

Irreconcilable Presidential Determinations: On Tren de Aragua and the Venezuelan Government

The two determinations are mutually exclusive; it is legally impossible to maintain both simultaneously.
A US Marines' Lockheed Martin F35-B jet prepares to land at José Aponte de la Torre Airport, formerly Roosevelt Roads Naval Station, on September 13, 2025, in Ceiba, Puerto Rico. President Donald Trump is sending ten F-35 fighter jets to Puerto Rico as part of his war on drug cartels, sources familiar with the matter told AFP on September 5, as tensions mount with Venezuela over Washington's military build-up in the Caribbean. The planes will join US warships already deployed to the southern Caribbean as Trump steps up pressure on Venezuelan President Nicolas Maduro, whom the United States accuses of leading a drug cartel. The Trump administration recently carried out a drone strike in the southern Caribbean against a boat that had left Venezuela and was suspected of transporting drugs. Eleven people died in the attack. The president claimed that the vessel was operated by the Venezuelan gang Tren de Aragua. (Photo by Miguel J. Rodriguez Carrillo / AFP) (Photo by MIGUEL J. RODRIGUEZ CARRILLO/AFP via Getty Images)

Attacking Drug Cartels in the Territory of Another State

The U.S. operations conducted to date against suspected members of drug cartels stretch the applicable international law rules and their interpretation beyond recognition.
The US Navy warship USS Sampson (DDG 102) docks at the Amador International Cruise Terminal in Panama City

Legal Flaws in the Trump Administration’s Notice to Congress on “Armed Conflict” with Drug Cartels

The Trump administration’s “armed conflict” justification, however, is groundless.
The blue flag of the International Criminal Court flies outside of the organization's headquarters.

The International Criminal Court’s Classification of Armed Conflicts in the Situation in Palestine

The Pre-Trial Chamber's classification of armed conflicts in Gaza and its implications for the Court's jurisdiction.
People sit in a truck on a dusty road with a brown single-story building in the background.

Assessing Amnesties and Re-assimilation in Northeast Syria

Using amnesties, trials, and “parole boards” for detainees in northeast Syria would be consistent with the requirements of international law.
A black colored International Law book sits with a judges gavel on top of it on desk in the library. The book's spine has "International Law" written in gold letters and the gavel is made of dark brown wood.

Assessing the Civilian and Political Institutions of Armed Non-State Actors under International Law

International law must better understand and account for the realities of civilian life in territory under armed group control.

Armed Conflict Classification in the ICC Prosecutor’s Request for Arrest Warrants – Between International Humanitarian Law and International Criminal Law

"The classification of different armed conflicts in the report is not a simple interpretation of the relevant rules, but an interpretive choice."
A medical professional attends to three male patients propped up in hospital beds inside a Syrian hospital.

Provision of Healthcare by Islamist Armed Groups: Between Sharia and International Law

Case studies reveal that Islamist rebel groups may be willing to comply with certain international humanitarian norms if linked to Sharia law.
SPLA Leader John Garang extends his hand in greeting into a crowd of Sudanese civilians.

Rebel Laws in Conflict: From Law-Taking to Law-Making and Law-Adapting

While legislating is traditionally seen as a role of the State, armed groups impose “rebel law” over ~64 million people in contested regions.
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