James Mattis

Defense Secretary Jim Mattis said Saudi help was vital to his efforts to jump-start peace talks on Yemen.

The Defense Department is changing up a major exercise it holds annually with South Korea, Defense Secretary Jim Mattis said...

Defense Secretary Jim Mattis weighed in on a late-night memo from White House Chief of Staff John Kelly.

Two Democratic senators are calling on Defense Secretary Jim Mattis to send the troops back to their homes for the holiday.

Mattis called the deployment legal and justified, and said it was necessary to make sure the U border was properly secure.

Defense Secretary Jim Mattis plans to visit U.S. troops stationed on the southwest border on Wednesday.

The U.S. military has made lethality the lone benchmark under the leadership of Defense Secretary James Mattis.

Saudi-led military operations are "increasingly confining populations and cutting off exit routes."

The Democrats' takeover of the House poses major challenges to current Pentagon and VA plans and budgets.

"We've got to replace combat with compromise," the defense secretary said.