Ashton Carter

During the final years of the Obama administration, Carter opened all military combat roles to women and lifted the ban on transgender soldiers serving openly.

The tweet features a 2015 image of Biden comforting the wife of then-Defense Secretary Ashton Carter.

Pentagon and U.S. military officials issued letters to Congress that were not only misleading but false.

Looking to innovate, the Defense Department has set up shop just a stone's throw away from Google.

"I'm not a believer in backdoors or a single technical approach. I don't think it's realistic."

U.S. Defense Department has announced plans to attack ISIS "on all fronts."

Defense Secretary Ashton Carter is said to have sent a letter asking for a bigger military contribution.

Defense Secretary Ash Carter says the U.S. is prepared to change the rules of engagement.

The U.S. wants to arm the Kurds to open a second front against the militant group, but Turkey has other ideas.

Carter said on Tuesday that the United States military would sail and fly wherever international law allowed.

Vladimir Putin has escalated the Syrian conflict with airstrikes, but U.S. officials say his strategy is self-defeating.

Defense Secretary Ashton Carter made the announcement during a briefing on Thursday.

At Wednesday's hearing Senators contemplated war and accused administration officials of capitulating.

U.S. Vice President Joe Biden reassured Iraqi Prime Minister Haidar al-Abadi on Monday of the U.S. commitment to Iraq's fight against ISIS.

Carter benefited from bipartisan support after he was nominated in December.

Susan Rice is one of the president's closest advisers. But does she have what it takes to put America's foreign policy back on track?

Barack Obama nominated longtime Defense Department understudy Ashton Carter as his fourth defense secretary on Friday to replace Chuck Hagel.

Ashton Carter was nominated for the position of Secretary of Defense by Barack Obama on Friday, his fourth defense secretary in 6 years.

After the undignified ousting of Chuck Hagel, Obama needs a sound manager with counter-insurgency skills.

Likely nominee Ashton Carter faces Pentagon budget cuts and demands for more military operations.

Ashton Carter is a former deputy secretary at the Department of Defense.

President Barack Obama is considering a variety of high-profile figures as his candidate to be the next U.S. defense secretary and replace the resigning Chuck Hagel, administration sources said on Monday.