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(L-R) A general view of the capital Nuuk, Greenland, on March 4, 2025. US President Donald Trump has strained relations with Denmark by repeatedly signalling that he wants control over Greenland, an autonomous Danish territory. (Photo by ODD ANDERSEN/AFP via Getty Images); U.S. Secretary of State Marco Rubio listens as U.S. President Donald Trump addresses the media during a news conference at his Mar-a-Lago club on January 3, 2026, in Palm Beach, Florida. During the remarks, Trump confirmed that the U.S. military had carried out a large-scale strike in Caracas overnight, resulting in the capture of Venezuelan leader Nicolas Maduro and his wife, Cilia Flores.(Photo by Joe Raedle/Getty Images); A general view of the capital Nuuk, Greenland, on March 4, 2025. US President Donald Trump has strained relations with Denmark by repeatedly signalling that he wants control over Greenland, an autonomous Danish territory. (Photo by ODD ANDERSEN/AFP via Getty Images)

Collection: U.S., Greenland, and NATO

Experts examine legal, political, and security dimensions of U.S. policy on Greenland, including U.S.-NATO relations, congressional oversight, and geopolitical implications.  
Graph: Monthly border patrol apprehensions

Fact Checking the “Success” of Trump Border Patrol Policies

U.S. border policy does not define migration. A new study shows that restrictions on border crossings under both Biden and Trump had little immediate effect.
Visualization of digital justice

Securing Justice for Cyber-Enabled International Crimes

A new ICC policy provides a valuable framework for the investigation of cyber-enabled international crimes.
Anti-ICE signs decorate the front of a home on January 29, 2026 in Minneapolis, Minnesota. (Photo by Scott Olson/Getty Images)

DHS Warrantless Home Entry Memo’s Fourth Amendment Problem

An internal ICE memo authorizes agents to enter homes for immigration arrests without judicial approval, breaking with DHS policy and raising Fourth Amendment concerns.
Map of the US's Exclusive Economic Area, including Navassa Island but not Bajo Nuevo Bank and Serranilla Bank.(via WikiCommons)

How Greenland’s Relationship with Denmark Exposes the Shortcomings of Being a “U.S. Territory”

The relationship between the U.S. and its island territories should concern anyone who believes in the “consent of the governed” and the idea of “all created equal."

Early Edition: February 3, 2026

Signup to receive the Early Edition in your inbox here. A curated weekday guide to major news and developments over the last 24 hours. Here’s today’s news: IRAN U.S. envoys…
A hand points at a futuristic digital map

The Third Summit on Responsible AI in the Military Domain (REAIM)

The Third REAIM Summit will provide a unique forum for industry, academia, and policy experts to discuss AI in the military domain with governments and militaries.
The US Navy warship USS Sampson (DDG 102) docks at the Amador International Cruise Terminal in Panama City on September 02, 2025. Venezuelan President Nicolas Maduro said on September 1, 2025, that eight US military vessels with 1,200 missiles were targeting his country, which he declared to be in a state of "maximum readiness to defend" itself. (Photo by MARTIN BERNETTI/AFP via Getty Images)

Arbitrary Killings or War Crimes? Why It Matters How the U.S. Strikes in the Caribbean Are Categorized

Analysis of U.S. military strikes in the Caribbean and the legal consequences of classifying them as arbitrary killings or war crimes under international law.
Two young men roll a truck wheel away from the camera between two lines of trucks at the left and right of the image.

How the U.N. Can Show Renewed Leadership on Peace Efforts in 2026

To support peace efforts, the U.N. will need to show that it can adapt to the changing world order and not mourn the old order.
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.

Early Edition: February 2, 2026

Signup to receive the Early Edition in your inbox here. A curated guide to major news and developments over the weekend. Here’s today’s news: ISRAEL-HAMAS WAR – CEASEFIRE…
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Digest of Recent Articles on Just Security (Jan. 24-30, 2026)

Minnesota / ICE and CBP Operations • Collection: U.S. Lethal Strikes • U.S. Actions Related to Venezuela • Syria • Symposium: Treaty on Crimes Against Humanity • Symposium:…
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