Armies, as all capitalists companies and organizations, embrace free software mostly because it's free (in price). They don't care about communities at all. In fact, governements are trying to make encryption illegal for civilian users.

I don't want armies, so I don't care about their sovereignty, but some interesting questions arise: Should be free software used by anybody who don't respect freedom? Should free software licenses include some clause to deny that? If so, would it be really free?

My answers are no, maybe and no.