UN Charter

× Clear Filters
226 Articles
Image of a globe focused on East Europe and parts of western Russia.

Ukrainian Drone Incursions into Baltic States, Russian Electronic Warfare Countermeasures, and International Law

Experts unpack the international law implications of recent incursions of Ukrainian drones into the airspace of Baltic countries due to Russian electronic warfare tactics.
(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.  
The flag of Mexico flying at United Nations headquarters in new York (via UN Photo)

How Multilateral Powers Can Still Save the World Order

Imperfect as the postwar order may be, the cost of abandoning it would be far greater than the cost of reinforcing it.
U.S. Secretary of Defense Pete Hegseth listens as Chairman of the Joint Chiefs of Staff Gen. Dan Caine testifies before the Senate Armed Services Committee in the Dirksen Senate Office Building on June 18, 2025 in Washington, DC.

At the 60-Day Mark, the Iran War is Triply Illegal

Under the War Powers Resolution, Trump must now terminate the hostilities against Iran he began two months ago. He seems set against doing so.
US Department of State building with sign in front

On the State Department Memorandum “Operation Epic Fury and International Law”

Former State Department attorney's critique of the Department's Iran war memorandum on “Operation Epic Fury and International Law.”

A Primer on Just War Theory and the Iran War

Leading scholar explains just war theory and the Iran war. An assessment of the Trump administration's response to the Catholic Church.
Plumes of smoke rise following reported explosions in Tehran early on March 3, 2026. The United States and Israel started striking Iran on February 28, killing Iran's supreme leader and top military leaders, and prompting authorities to retaliate with strikes on Israel and across the Gulf. (Photo by ATTA KENARE / AFP via Getty Images)

Over 100 International Law Experts Warn: U.S. Strikes on Iran Violate UN Charter and May Be War Crimes

Over 100 international law experts sign letter on Iran War, UN Charter, and international humanitarian law.
Wideshot view of United Nations Security Council meeting.

Global Governance of Emerging Technologies: Counterterrorism Challenges at the United Nations Security Council

How the UN Security Council governs emerging technologies amid rising terrorist threats, balancing innovation, security, and human rights.
​Grey boxes filled with fragments of ancient pottery collected after an Israeli strike near the archaeological site of the Roman hippodrome in the southern Lebanese city of Tyre.

Self-Preservation and the Erosion of International Law

It is the violation of fundamental principles of international law that ultimately constitutes an existential threat to all members of the international community.
United Nations (UN) Secretary-General António Guterres speaks at a podium at the UN headquarters while a large audience watches.

In the Race for U.N. Secretary-General, Might a Woman Finally Lead?

In 2026, a decades-old question returns to center stage: will this finally be the moment for a woman to serve as U.N. Secretary-General?
Wide view of Tehran’s skyline with several tall plumes of grey smoke rising between apartment buildings under a hazy, grey sky.

An Unserious Justification for an Unnecessary War: Assessing the U.S. “Article 51” Letter to U.N. on Iran War

Former US State Department attorney writes that the United States' "Article 51" letter to the UN Security Council fails to identify legal basis for Iran attack.
Smoke rises from the site of an Israeli airstrike that targeted an area in Beirut's southern suburbs on March 10, 2026. (Photo by Ibrahim AMRO / AFP via Getty Images)

The Illegality of Israel’s Military Campaign in Lebanon

Israel and the United States must end their ongoing war of aggression against Iran, and Israel must end its unnecessary military campaign in Lebanon.
1-12 of 226 items

DON'T MISS A THING. Stay up to date with Just Security curated newsletters: