Ukraine's online market allows troops to buy weapons with points earned for Russian kills. That'll expand to evacuations with ...

Future battlefields will employ ever-more technology, whether that battlefield is on earth, in the sea, in space, or in ...

Forget robot wolves and missile-deflecting satellites — those things are already becoming old news. Instead, future wars just might revolve around insect-size spy robots. A recent digest of ...

Tesla CEO Elon Musk said that the company’s Optimus robot could follow people around and prevent them from committing crimes.