The Russian submarine Arkhangelsk has arrived at a base in the Arctic, bolstering Russia's presence in the region, according ...

Drone warfare is perhaps the single biggest change in modern combat, and the U.S. Army has the latest in the tech. Here's ...

North Korean troops appear to have temporarily pulled back from the frontline in Russia after suffering heavy losses, a ...

Donald Trump says he will retaliate with "urgent and decisive" measures after Colombia turned away two US military planes carrying deported migrants.