Some 24 service members died from breathing the colorless, tasteless, odorless and deadly gas.

John Lee Levitow saved his aircrew in the skies above Vietnam by throwing himself on a flare that was seconds from igniting.

The Defense Information Systems Agency confirmed that it experienced a data breach in the middle of 2019.

Chris Taylor announced on Monday that he will be suspending his campaign because of a recent drug overdose.

Matthew Kraft disappeared after taking leave for a backcountry ski trip along the High Sierra Route starting Feb. 24, 2019.

Assange has been indicted in the U.S. on 18 charges over the publication of classified documents.

The DoD has vowed that if it cannot use artificial intelligence on the battlefield in an ethical way, it will not field it.

Pfc. Joseph Del Hierro, a 26-year-old Miami native, died from his injuries, according to an 82nd Airborne news release.

Four law enforcement agencies teamed up to find a man who had fled a Pentagon parking lot on foot Monday morning.

Rene Gagnon, Jr., is still dealing with the fact that his father was not in the iconic photo of the flag raising on Iwo Jima.

Sikorsky-Boeing officials said the new aircraft design will be capable of flying at speeds of more than 200 knots.

The senators urged Esper to add the 74 sailors who died aboard the USS Frank E. Evans to the Vietnam Veterans Memorial.

The investment would go toward VA's precision oncology program, which moves away from one-size-fits-all cancer treatments.

The cruise ship evacuation was voluntary, but the U.S. Embassy strongly encouraged passengers to take it.

Knapp will replace Maj. Gen. Donald Dunbar, who resigned at the end of December.