After Government Accountability Office audits found that inspections were lacking, the Marine Corps is reinforcing its rules around ammo and firearm security.

Ukraine's defense industry has grown substantially, but it's yet to reach its potential. Exports could clear the way.

Defense startup Castelion said on Friday it has won contracts to integrate its Blackbeard hypersonic strike weapon with current U.S. Army systems, the first step toward allowing the military to place the powerful and nearly unstoppable weapons around the world.