Former Defense Secretary Lloyd Austin's alleged Signal leak raises questions about double standards and national security. Would Republicans demand his resignation if he were a White House official?

Philippine Secretary of National Defense Gilbert Teodoro on Monday laid out Manila’s plans to deter Chinese efforts in the ...

Mr. Hegseth’s stumbles started soon after he was sworn in to lead the Pentagon on Jan. 25.

Arizona's members of Congress have had a mix of reactions to the Signal app controversy.

Top national security officials for President Donald Trump, including his defense secretary, texted war plans for upcoming military strikes in Yemen to a group chat in a secure messaging app that ...

It’s the style of mistake one might expect from a careless teenager. It’s Jimmy shooting a text message to his best friend ...

Trump administration officials face scrutiny over national security breach after accidentally adding journalist to Signal ...

The Atlantic's editor Jeffrey Goldberg was included in a group chat about U.S. plans to conduct airstrikes on Yemen. Who is DoD Sec. Pete Hegseth?

Atlantic editor-in-chief Jeffrey Goldberg said the material in the text chain “contained operational details of forthcoming ...