Martin Dempsey

America's top military leader arrived in Iraq on Saturday on a previously unannounced visit, his first since a U.S.-led coalition began launching airstrikes against the extremist Islamic State group.

The Pentagon warned Congress on Thursday that the long, drawn-out military campaign against Islamic State militants is just ...

The barrage of U.S. cruise missiles last month aimed at a Syrian terroristcell killed just one or two ...

ISIS apparently has plans to invade the United States through Mexico, according to a Homeland Security official. The ...