A U.S. district judge on Thursday struck down the Pentagon’s decision to designate Anthropic as a supply-chain risk, concluding that the government’s action violated the company’s constitutional rights.
Why it matters
The ruling represents a significant legal win for Anthropic in its months-long dispute with the Trump administration over the conditions under which the military may use the company’s AI models.
Court ruling details
U.S. District Judge Rita Lin found the Pentagon’s designation unlawful in a 59-page opinion. Lin wrote, “The empty invocation of national security is not a blank check to punish and retaliate against government critics.”
Lin also observed that the Pentagon continued to pursue work with Anthropic after issuing the designation, noting that such conduct was inconsistent with a genuine fear that Anthropic would sabotage its software to harm national security.
Background of the dispute
The conflict began earlier this year when Anthropic and the Department of Defense clashed over military use of the company’s AI models. The Defense Department sought authority to use Claude for “all lawful purposes,” including the most sensitive military and intelligence applications.
Anthropic objected to two specific uses: mass surveillance of Americans and fully autonomous weapons. The disagreement escalated when the Pentagon labeled Anthropic a national security and supply-chain risk, and Anthropic filed suit.
Statements
A spokesperson for Anthropic said in a statement: “We are pleased the court has ruled that this supply chain risk designation was unlawful. We remain focused on working productively with the government to harness AI for our national security so all Americans benefit from this technology.”
What happens next
The government is expected to appeal the ruling. Anthropic is also pursuing a separate legal challenge to a different Pentagon designation in the D.C. Circuit.
Summary
The decision limits the Pentagon’s ability to rely on broad national security assertions to justify punitive actions against private companies, and the case is likely to continue through the appellate process.



