From war plans to surveillance secrets, America's biggest intelligence leaks have exposed military strategies, covert ...

China remains the primary military and cyber threat to the United States. A report by US intelligence agencies states that ...

Under questioning from senators, the C.I.A. chief and the director of national intelligence pointed to the defense secretary ...

President Donald Trump's top intelligence officials will brief House lawmakers Wednesday on global threats facing the U.S. — ...

Men and women who have taken to the air on behalf of the United States expressed bewilderment after the leak of attack plans.

The Atlantic published the entire Signal chat on Wednesday. Its editor-in-chief, Jeffrey Goldberg, had been added to a ...

U.S. Senate Democratic leader Chuck Schumer called for a "full investigation" after The Atlantic reported that top national ...

Judge James E. Boasberg, whom has already drawn President Trump’s ire, ordered national security agencies to preserve the ...

The Army is looking at artificial intelligence to help provide security for its installations that make and store munitions.

Taiwan will deepen military cooperation with the United States including intelligence sharing and holding joint tabletop ...