To put a finer point on what just happened:
Hegseth's post says that "no contractor, supplier, or partner that does business with the United States military may conduct any commercial activity with Anthropic".
Anthropic serves its models through the cloud. Its primary partner is AWS, but it also serves its models through Google Cloud and Azure (not sure if there are any others?).
ALL of Amazon, Microsoft and Google do business with the U.S. military (see, e.g., the link below).
If we take Hegseth's post literally, Anthropic should now find itself unable to serve its models via any of these providers.
war.gov/News/Releases/Releas…