No. They can do that with an order covering the specific parameters under which they care about it. Supply chain risk definition is about adversaries and sabotage, not companies dictating contract terms.

They don't want Anthropic to be able to sabotage any operations the DoD has. Anthropic already has a history of trying to sabotage others like during the Fable release when they said they'd subtly wreck your code if you were working on cutting edge AI.