Federal Judge Blocks Pentagon Risk Designation of Anthropic

A federal judge issued a preliminary injunction on March 26 blocking the United States Department of Defense from enforcing a supply-chain risk designation against Anthropic. The legal battle began in February 2026 after the AI firm refused to allow its Claude models to be used for the mass surveillance of Americans or the development of fully autonomous weapons.

The Pentagon demanded access to the technology for all lawful purposes, leading the Department of Defense to threaten the risk designation. In support of this move, President Donald Trump directed federal agencies to stop using Anthropic's technology, granting the Defense Department a six-month phase-out period. The designation threatened a $200 million contract and would have forced other defense contractors to sever ties with the company.

Anthropic CEO Dario Amodei challenged the government's position, arguing that frontier AI models lack the reliability required for autonomous weapons and that mass domestic surveillance endangers democratic values. The court's injunction halts the enforcement of the designation while litigation continues.