Executive Branch

Just Security’s expert authors provide analysis of the U.S. executive branch related to national security, rights, and the rule of law. Analysis and informational resources focus on the executive branch’s powers and their limits, and the actions of the president, administrative agencies, and federal officials.

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4,569 Articles

Book Release – Perpetual War and International Law: Enduring Legacies of the War on Terror

Introducing a new OUP book interrogating how precedents set in the post-9/11 era continue to shape contemporary conflicts.
The US Navy warship USS Sampson (DDG 102) docks at the Amador International Cruise Terminal in Panama City

The Many Ways in Which the September 2 Caribbean Strike was Unlawful … and the Grave Line the Military Has Crossed

A deep dive into US domestic authority and law most relevant to the US strike on alleged Venezuelan drug boat.
The Just Security Podcast

The Just Security Podcast: Murder on the High Seas? What You Need to Know about the U.S. Strike on the Caribbean Vessel

Rebecca Ingber and Brian Finucane join Tess Bridgeman to unpack what you need to know about the U.S. strike on a purported drug trafficking vessel in the Caribbean.
Visualization of a quantum chip

A Strategic Bet to Advance America’s Quantum Leadership

By prioritizing quantum sensors, the Trump administration can catalyze defense breakthroughs and secure the U.S. lead in the quantum era.
Crew members of the US Navy warship USS Sampson (DDG 102) are pictured 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)

Using Labels, Not Law, to Justify Lethal Force: Inside the Venezuelan Boat Strike

Applying a new label to an old problem does not transform the problem. Nor does it grant the U.S. president or the U.S. military expanded legal authority to kill civilians.
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.
Seal of the Foreign Malign Influence Center (Wikimedia Commons)

What Just Happened? Dismantling the Intelligence Community’s Foreign Malign Influence Center

Director of National Intelligence Gabbard is dismantling the last government unit tracking and analyzing State-sponsored interference in U.S. institutions, elections, and society.
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?
IMAGES (left to right): Natural disaster and its consequences (via Getty Images); In this picture taken on September 28, 2022, an internally displaced flood-affected family sits outside their tent at a makeshift tent camp in Jamshoro district of Sindh province (Photo by Rizwan Tabassum/AFP via Getty Images; Trees smolder and burn during the Dixie fire near Greenville, California on August 3, 2021. – Numerous fires are raging through the state’s northern forests, as climate change makes wildfire season longer, hotter and more devastating. (Photo by JOSH EDELSON/AFP via Getty Images)

Just Security’s Climate Archive

A catalog of articles analyzing the diplomatic, political, legal, security, and humanitarian consequences of the international climate crisis.
Judges of the International Criminal Court (ICC) await the verdict of a sentencing on November 20, 2024 at the ICC court in The Hague. (Photo by EVA PLEVIER/ANP/POOL/AFP via Getty Images)

Raising the Cost of U.S. Coercion Against the ICC

Previous administrations sought to reinterpret, evade, or selectively engage with international law. The Trump administration is actively delegitimizing and dismantling it.
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.
People demonstrate with CASA outside the Supreme Court of the United States on Thursday May 15, 2025. (Photo by Matt McClain/The Washington Post via Getty Images)

The APA Authorizes “Universal” Stays of Agency Action Under 5 U.S.C. § 705

For litigants seeking to move quickly against unlawful executive action, Section 705 of the Administrative Procedure Act should be a powerful tool.
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