Waltz’s fate was sealed by his inclusion of a journalist on a sensitive Signal group chat in March. But he had been clashing ...

Trump’s approach to foreign policy has prompted fears about repeating “mistakes of appeasement” among many in Britain -- a ...

Trumps White House purge is making headlines after he abruptly fired National Security Adviser Mike Waltz. Reports suggest a ...

Secretary of State Marco Rubio is taking over for Michael Waltz as National Security Adviser, but Rubio is keeping his main job and other roles.

As defense startups proliferate, they look to the Pentagon for contracts—while encouraging it to reform itself.

Washington Post quotes US officials saying that ousted security adviser pushed policy 'in direction Trump wasn't comfortable ...