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Anthropic sues Pentagon over 'supply chain risk' label
Anthropic's lawsuits follow a weeks-long standoff with the Pentagon

Anthropic sues Pentagon over 'supply chain risk' label

Mar 10, 2026
12:15 am

What's the story

Anthropic, a leading artificial intelligence (AI) company, has filed two lawsuits against the US Department of Defense (DoD). The legal action comes after the Pentagon labeled Anthropic as a "supply chain risk," a designation the company claims is unconstitutional and violates its First Amendment rights. The lawsuits were filed in California's Northern District Court and the US Court of Appeals for the Washington DC Circuit.

Scenario

Lawsuit follows weeks-long standoff

Anthropic's lawsuit follows a weeks-long standoff with the Pentagon over whether the military should have unrestricted access to its AI systems. The company drew two firm red lines: it did not want its technology used for mass surveillance of Americans and said it was not ready to power fully autonomous weapons. Defense Secretary Pete Hegseth argued the Pentagon should be able to use AI systems for "any lawful purpose" and should not be constrained by a private contractor.

Legal challenge

First US company blacklisted under Defense Production Act

The Pentagon officially issued the supply chain risk designation to Anthropic last Thursday. This is the first time a US company has been blacklisted using this tool. The AI firm had previously promised to fight against this designation and its requirement that any government contractor sever ties with Anthropic, a major threat to its business model.

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AI integration

DoD's extensive use of Claude

Anthropic's AI model, Claude, has been deeply integrated into the Department of Defense over the past year. It was also the only AI model approved for use in classified systems until recently. The DoD has reportedly used it extensively in its military operations, including deciding where to target missile strikes in its war against Iran.

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Business impact

Commitment to national security remains, says Anthropic

Despite the legal battle, Anthropic has reiterated its commitment to providing AI for national security purposes. The company has previously worked with the DoD to modify its systems for unique use cases. Seeking judicial review does not change our longstanding commitment to harnessing AI to protect our national security, but this is a necessary step, an Anthropic spokesperson said in a statement to The Guardian.

Lawsuit allegations

Lawsuit accuses Trump administration of ideological punishment

Anthropic's lawsuit accuses the Trump administration of punishing the company for its refusal to comply with ideological demands, violating its protected speech. "These actions are unprecedented and unlawful. The constitution does not allow the government to wield its enormous power to punish a company for its protected speech," Anthropic stated in its California lawsuit.

Business threat

Designation threatens Anthropic's government business

The supply chain risk designation poses a major threat to Anthropic's government business. President Donald Trump has also ordered the government to stop working with Anthropic, whose investors include Google and Amazon. However, despite the legal battle, CEO Dario Amodei clarified that the designation had "a narrow scope" and businesses could still use its tools in projects unrelated to the Pentagon.

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