The Pentagon's intelligence and law enforcement arms are investigating what it says are leaks of national security ...

The review started in response to a joint bipartisan request last week from leaders of the Senate Armed Services Committee.

President Trump said his national security adviser, Mike Waltz, "learned a lesson" after he opened up a secret chat of Trump ...

Speaking to reporters from the Oval Office, the president focused on the successful U.S. airstrikes in Yemen more than the ...

Billionaire Elon Musk took his campaign to cut the U.S. federal government into uncharted waters on Friday, holding an ...

The Pentagon said it would investigate purported leaks of national security information, saying that the probes could include polygraph tests.

Investigations into the alleged leaks at the Pentagon come after Homeland Security ... Friday into what it purported to be "the selective leak of inaccurate, but nevertheless classified ...