National Security
67 Articles

Structuring Markets for Strategic Quantum Innovation
To harness quantum's full potential, governments should create a market environment conducive to strategic innovation.

Hegseth Promises to Save the Pentagon Billions of Dollars. Here’s What Actually Could.
If the Trump administration wants to end wasteful Pentagon spending, it should reform the many faltering weapons programs and review its contractor ecosystem.

Governing the Quantum Revolution
Introducing a new series bringing together a range of perspectives on the policy challenges emerging from the quantum revolution.

Secretary of State Rubio’s Reorganization Plan Could Offer a Chance to Rescue U.S. Foreign Assistance — If He’s Smart About It
After months demolishing foreign aid, the Trump administration could still regroup for something worthy of America’s values and interests.

The New “National Defense Area” at the Southern Border: What You Need to Know
NSPM-4 creates a military area that is twice the size of Washington, D.C. and expands the military’s role in stopping cross-border migration.

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.

Nuclear Testing Is a Relic. Resuming It Would Be Reckless.
The United States will uphold its leadership in non-proliferation by refraining from unnecessary and destabilizing nuclear tests.

The Dangerous Foreign Intelligence Exception Loophole in the Hasbajrami Decision
The Hasbajrami decision’s expansive view of the FISA foreign intelligence exception threatens to swallow the rule that the Fourth Amendment's warrant requirement applies to U.S.…

Dropping U.S. Biodefenses: Why Cuts to Federal Health Agencies Make Americans Less Safe
Top experts write that the Trump administration's sweeping changes to HHS will make the United States highly insecure, not healthy.

Signal Gate: The Criminal Law Precedents That Are Most Relevant
A range of federal laws, including the Espionage Act and laws against the destruction of government records, could apply in this case.

Shaping the AI Action Plan: Responses to the White House’s Request for Information
A thematic roundup of proposals aimed at shaping the Trump administration's new AI Action Plan.

A Matter Of Global Security: Why Action on Climate Displacement Cannot Wait
It is time to build a more resilient, sustainable future — one that anticipates and mitigates the climate drivers of displacement and accommodates the movement of displaced people…