A US judge on Aug. 27, 2026 blocks the Pentagon’s blacklisting of Anthropic, the latest turn in the Claude maker’s high-stakes fight with the military over AI safety on the battlefield. Anthropic’s lawsuit in California federal court alleges that Defense Secretary Pete Hegseth overstepped his authority when he designated Anthropic a national security supply-chain risk, a label the government can apply to companies that expose military systems to potential infiltration or sabotage by adversaries.