My understanding is that the DOD signed the terms of service, and are now trying to renegotiate them. Anthropic has declined to change the terms. This makes the government angry.

I just find it strange that you have the same people always complaining about how big tech is too powerful. If you have a problem with what you military is upto, you should take that up with your elected representatives. Boycotting an AI company is a laughable response and will have no effect on outcomes here.