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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)

Legal Issues Raised by a Lethal U.S. Military Attack in the Caribbean

The Trump administration’s extraordinary lethal attack on a purported drug smuggling vessel – and its vow that it is the start of a campaign – raise significant legal issues.
Ukraine's President Volodymyr Zelenskyy (L), Britain's Prime Minister Keir Starmer (C) and France's President Emmanuel Macron (R)

The Fantasy of a European Reassurance Force for Ukraine

A European "reassurance force" for Ukraine risks being another notional "guarantee" offering little more than a false sense of security.
Space wars. Weapons in space (via Getty images)

America’s Missile Shield Raises Legal and Cybersecurity Concerns

The Golden Dome raises urgent questions: What are the legal boundaries for weapons in orbit? How can the United States prevent cybersecurity liabilities?
A collage of images featuring scenes from the Russia - Ukraine War.

Just Security’s Russia–Ukraine War Archive

A catalog of over 100 articles (many with Ukrainian translations) on the Russia Ukraine War -- law, diplomacy, policy options, and more.
IMAGES (left to right): People search through buildings, destroyed during Israeli air raids in the southern Gaza Strip on November 7, 2023 in Khan Yunis, Gaza (Photo by Ahmad Hasaballah/Getty Images); A fireball erupts during Israeli bombardment of Gaza City on October 9, 2023 (Photo by Mahmud Hams/AFP via Getty Images); The International Court of Justice (ICJ), the principal judicial organ of the UN, holds public hearings on the request for the indication of provisional measures submitted by South Africa in the case South Africa v. Israel on 11 and 12 January 2024, at the Peace Palace in The Hague, the seat of the Court (Photo by the International Court of Justice).

Just Security’s Israel-Hamas War Archive

Just Security's collection of more than 110 articles covering the Israel-Hamas War and its diplomatic, legal, and humanitarian consequences.
Binders of executive orders stacked on a desk.

Collection: Just Security’s Coverage of Trump Administration Executive Actions

Coverage of key developments, including in concise “What Just Happened” expert explainers, legal and policy analysis, and more. Check back frequently for updates.
The Ukrainian and Taiwanese flags

A Security Guarantee for Ukraine? Look to the Taiwan Relations Act

The United States and its allies can use the Taiwan model to make post-war Ukraine more secure without writing checks they cannot cash.
Pedestrians pass a combat vehicle

One Week of Trump’s DC Takeover Attempt: An analysis of the president’s use of military, police, and security services in the nation’s capital

Detailed legal analysis of federalization of DC police and the deployment of Guard, DHS and other forces.
U.S. President Donald Trump sits at a table with Ukrainian President Volodymyr Zelensky, European Commission President Ursula von der Leyen, NATO Secretary-General Mark Rutte, and other European leaders

Trump, Zelenskyy, European Leaders in White House Meeting: Progress Toward a Deal?

Getting to any deal between Ukraine & Russia will require the United States & Europe to stand by Ukrainians & stare down Russia's demands.
Members of the DC National Guard talk to a tourist outside Union Station as a storm approaches in Washington, DC, on August 17, 2025. US President Donald Trump on August 11 deployed military and federal law enforcement to curb violent crime in Washington, as he seeks to make good on his campaign pledge to be a "law and order" president. The Republican leader said he would place the city's Metropolitan Police under federal government control while also sending the National Guard onto the streets of the US capital. (Photo by Andrew Caballero-Reynolds / AFP) (Photo by ANDREW CABALLERO-REYNOLDS/AFP via Getty Images)

Trump, the National Guard, and the District of Columbia: What You Need to Know

The president’s maximalist legal approach in deploying the military may well foreshadow broader use of the military in other American cities.
U.S. Federal Bureau of Investigation (FBI) and Metropolitan Police Department (MPD) conduct a traffic stop near the U.S. Capitol

How to Truly Keep Washington, DC Safe: President Trump’s militarized approach undercuts what’s been working

The spectacle in DC is a warning: presidential authority is being stretched simply to grab power. History tells us that’s how liberty erodes.
The Just Security Podcast

Just Security Podcast: What Just Happened – Federalization of Law Enforcement in Washington DC

Carrie Cordero and Donell Harvin join David Aaron to discuss legal and policy considerations regarding federalization of law enforcement in DC.
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