Kelley M. Sayler
On February 27, 2026, President Donald J. Trump directed federal agencies to “IMMEDIATELY CEASE all use of [American AI company] Anthropic’s technology.” Secretary of Defense Pete Hegseth (who is now using “Secretary of War” as a “secondary title” under Executive Order (EO) 14347 dated September 5, 2025) subsequently directed the Department of Defense (DOD, now using “Department of War” as a secondary designation under EO 14347) to designate Anthropic a supply-chain risk to national security; barred defense contractors, suppliers, and partners from working with Anthropic; and described an up-to-six-month period of transition away from Anthropic products.
This designation follows a reportedly months-long dispute between DOD and Anthropic over DOD use of Anthropic products, including the company’s generative AI model, Claude. On March 9, Anthropic filed a civil complaint in the U.S. District Court for the Northern District of California and a petition for review in the U.S. Court of Appeals for the D.C. Circuit regarding these directives. Some lawmakers have called for a resolution to the disagreement and for Congress to act to set rules for the department’s use of AI and/or autonomous weapon systems.