A Patriot air-defense system is moving from Israel to Ukraine, and Western allies are discussing the logistics of getting ...

KYIV, Ukraine — A Russian drone strike on Kharkiv, Ukraine’s second-largest city, wounded 47 people, local officials said.

President Donald Trump's removal of national security adviser Mike Waltz brings further disruption to his national security ...

China is running away with critical drone technology while the U.S. struggles to even get into the race, with experts warning ...