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.
4,623 Articles

US Seeks New Assurances from Saudis on Civilian Casualties—but is that even possible?
The Trump administration is reportedly seeking a new set of assurances from Saudi Arabia that it will minimize civilian casualties in its air campaign in Yemen—but would those…

The Pragmatic Reasons For Strict Rules of Engagement
As a presidential candidate, Donald Trump voiced his support for deliberately targeting the families of terrorists. Fortunately, he has not adopted this policy as president. But…

Fear and Loathing at DHS: Kelly Resorts to Trump Administration Fear Tactics
Department of Homeland Security Secretary John Kelly delivered a speech Tuesday that was stunning for its indifference to facts, accountability, and democratic oversight. Kelly…

Unconstitutional Motives: When US Policies Are Motivated Only in Part by Religious Discrimination
Few would dispute that government actions motivated wholly by religion violate the Constitution’s Establishment Clause. The question becomes more complicated if the motives are…

The Fog of War Powers
In the aftermath of President Trump’s strike on a Syrian airfield, commentators continue to debate the scope of presidential war powers under the Constitution. Yet many of…

Robert S. Taylor: On the Syria Strikes and Future of Non-UN Humanitarian Action
Why did President Bashar al-Assad use sarin gas earlier this month after years of refraining? Was the U.S. response legal? How should international lawyers think about the future…

Trump on North Korea: The Dangerous Impulse to Go it Alone
At Monday’s press briefing, White House Press Secretary Sean Spicer was asked whether President Donald Trump would seek congressional authorization before taking military action…

Former Deputy Assist Sec of Defense: “Glaring” “deficiencies” in Saudi Air Force responsible for civilian casualties in Yemen
Looking for an expert’s explanation of why the Saudi airstrikes in Yemen, which are supported by US arms and assistance, repeatedly kill large numbers of civilians? Andrew Exum,…

When Moral Compulsion is Characterized as a Crime of Aggression
As a number of my colleagues have been debating the lawfulness of the United States striking a Syrian airbase with 59 Tomahawk missiles in response to a purported chemical weapons…

“The Mother of All Bombs”: Understanding the Massive Ordnance Air Blast Weapon
The Massive Ordnance Air Blast Weapon (MOAB, known informally as the “Mother of All Bombs” and formally as the Guided Bomb Unit, or GBU, 43/B) has attracted a great deal of…

Censorship at the Border Threatens Free Speech Everywhere
Defending one’s political and religious beliefs to government officials is an obligation we associate with life in authoritarian regimes, not open societies. It’s becoming…

Norms Watch: Tracking the Erosion of Democratic Traditions (Apr. 7-14)
Editor’s Note: Welcome to the latest installment of Norms Watch, our series tracking both the flouting of democratic norms by the Trump administration and the erosion of…