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Abraham Lincoln (CVN 72) sails alongside Arleigh Burke-class guided-missile destroyer USS Frank E. Petersen Jr. (DDG 121) and Lewis and Clark-class dry cargo ship

Expert Q&A: Are U.S. Threats or Use of Force Against Iran Lawful?

Experts examine the international law issued raised by the U.S. threats and potential strikes against Iran.
Protesters hold Iranian pre-Islamic revolution of 1979 flags in front of the United Nations office in Geneva​, Switzerland on February 17, 2026.

What the Current Crises Facing Iran Mean for Human Rights and Rules on the Use of Force

The human rights crisis in Iran reveals the limits of a legal system designed to restrain force even when restraint carries profound human costs.
Denmark's Veterans hold Denmark and Greenland's flags.

Greenland Post-Davos: Enforcing 22 USC 1928f to Save NATO and Contain Trump’s Lawless Foreign Policy

In his threats against Greenland, President Trump has violated the U.N. Charter, the North Atlantic Treaty, and Section 1928f, prompting Congress to take swift action.
A person enjoys an afternoon walk near the sea on January 15, 2026 in Nuuk, Greenland. (Photo by Alessandro RAMPAZZO / AFP via Getty Images)

How Congress Can Preserve NATO and Greenland: Using 22 USC 1928f to Protect the Peace

Trump’s threats to invade Greenland risk destroying NATO itself, but a little-known statute, 22 U.S.C. 1928f, could prevent him from doing just that.
NATO Leaders join King Willem-Alexander and Queen Máxima of the Netherlands for a family photo as they participate in the 2025 NATO summit on June 24, 2025 in The Hague, Netherlands. (Photo by Haiyun Jiang-Pool/Getty Images)

The North Atlantic Treaty and a U.S. Attack on Denmark

Would NATO have to defend Denmark if the United States attempted to seize Greenland? Article 5 suggests other allies are obligated to come to Denmark's defense if requested.

Congress, the President, and the Use of Military Force in Venezuela

Did the president have the authority under U.S. law to undertake Operation Absolute Resolve without congressional authorization? Leading experts say he did not.

Maduro Capture Operation and the President’s Duty to Faithfully Execute U.N. Charter

A decades-old Office of Legal Counsel memorandum claiming the President can disregard the UN Charter does not withstand serious scrutiny.
A U.S. Air Force A-10 Thunderbolt II taxis at a base in the U.S. Central Command area of responsibility, Dec. 19, 2025. (U.S. Air Force photo)

Operation Hawkeye Strike: Attacking ISIS in Syria and International Law

International law, the new Syrian government, and U.S. military strikes against ISIS
Two crude oil tankers

Blockading Venezuela: The International Law Consequences

Expert analysis of the announced U.S. military blockade of Venezuela
Industrial fishing nets that appear to be dark red in color, along with their white floats, are spread out across the bottom two-thirds of the image, with fishermen walking among them and seagulls flying overhead, against a backdrop of a large paved area where a few cards are driving in front of an array of white warehouse-like buildings in the background. (Photo by ABDEL MAJID BZIOUAT/AFP via Getty Images)

A U.S.-Russia-China Entente? The Unmaking of the Sovereignty System via the Western Sahara

U.N. Security Council Resolution 2797 endorses Morocco's Autonomy Plan for Western Sahara, normalizing domination in a U.S.-China-Russia tripolar order.
Belarusian President Alexander Lukashenko (L) shakes hands with Russian President Vladimir Putin (R) during the Great Heritage - Common Future Forum, a Russian-Belarusian meeting, dedicated to the anniversary of the Battle of Stalingrad on April 29, 2025 in Volgograd, Russia. Vladimir Putin and Alexander Lukashenko are having a joint visit to Volgograd, former Stalingrad, marking the 80th anniversary of the end of World War II. (Photo by Contributor/Getty Images)

Memorandum for Prosecution of the Crime of Aggression Committed Against Ukraine

James Goldston and Esti Tambay present their organization's work, a Memorandum supporting efforts to hold officials accountable for the crime of aggression against Ukraine.

The ICJ’s Advisory Opinion on Israel’s Obligations Towards UNRWA and Other International Organizations in the Occupied Territories: Key Issues

Unpacking the International Court of Justice's advisory opinion on Israel's obligations towards the UN and others to provide humanitarian aid in the West Bank and Gaza.
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