Can I use patents from other countries for military purposes?

Patents are used for experiments, argumentation, personal use and other aspects that do not involve interests, and do not infringe the patent rights of others.

There is no clear legal provision on whether military purposes infringe, which may have gone beyond the legal boundaries.

But I think this thing should be classified as "compulsory license" and can be used.

National defense patents are usually authorized by secret examination, which is different from ordinary patents.