Why were they using the Signal app, which the Pentagon has warned members of the military against using for Department of Defense business ... Nothing destroys a leader’s credibility with ...

Ellie Cook is a Newsweek security and defense reporter based in London, U.K. Her work focuses largely on the Russia-Ukraine war, the U.S. military, weapons systems and emerging technology.

The revelation of a second sensitive group chat in just a few weeks after news of the first one broke adds to the apparent dysfunction inside the Defense Department, in which multiple top Hegseth ...

One year out of college and with no apparent national security expertise, Thomas Fugate is the Department of Homeland ...