It's even more perplexing in this case though, because the original DoD contract was signed in July 2025. It was the same "plant manager" just arbitrarily changing their mind in the middle of the contract they signed.
Why not just stop buying their guns and let contractors still use those guns if they need guns to shoot animals?
It could also be as simple as "anything tainted by the Claude non-targeting-conditions can't be used in target selection, and we don't want to leak classified information about which components we use in target selection by requiring specific items to be developed without Claude, so we can't allow it anywhere".
Humans see a hammer and a nail and don't think about the rule saying "rubber tipped hammers only in this area, flammable vapour present".
"Anthropic a Supply-Chain Risk to National Security. Effective immediately, no contractor, supplier, or partner that does business with the United States military may conduct any commercial activity with Anthropic."
Presumably, according to the defenders of the designation in this thread, this was an innocent mistake that doesn't indicate any political intent.