The Department of Defense formally informed Anthropic that the company and its products are a ‘supply‑chain risk,’ a designation that immediately restricts the company’s use on government platforms and sent ripples through contractors and university partners. Secretary of War Pete Hegseth framed the action as required so the military can “use technology for all lawful purposes.” Anthropic says it will challenge the designation in court. The company’s CEO, Dario Amodei, also addressed fallout from a leaked internal memo and apologized to staff as the firm confirmed the Pentagon designation. Anthropic has publicly defended limits it sought on military uses—specifically prohibitions on mass domestic surveillance and fully autonomous weapons—and warned that an across‑the‑board cut‑off would disrupt ongoing deployments used by government and defense contractors. The dispute raises direct implications for campus research and defense collaborations: universities that rely on Claude or Anthropic partnerships face operational uncertainty for classified and contractor projects, and defense contractors are already notifying partners and switching vendors. Legal challenges and contracting transitions are likely to play out through the prospective 2026 IPO cycle and in federal procurement reviews.