That is an interesting question, very far from my daily concern and brings dilemmas when I think about it. My response would probably be "I don’t know".
However Anthropic situation is very different: there’s no ongoing invasion of the USA, and they traditionally attack other countries once in a while (no judgment) so the weapons upgrade will be "useful" on the field.
It is of course possible to argue that the reason there is no ongoing invasion of the USA is because of our continued investment in technology for killing people