An Air Force probe of officer drug abuse has led to the discovery of a cheating scandal in the nation's nuclear missile force...

The U.S. will need to spend as much as $18 billion per year starting in 2021 in order to maintain a viable nuclear deterrence...

Defense Secretary Jim Mattis warned Kim Jong-un that North Korea would be destroyed in conflict with the U.S.

Defense Secretary Chuck Hagel has been considering pay raises and other incentives to boost the flagging morale of young...

Obama is preparing to defend the Iran nuclear deal from a group of Republican lawmakers who questioned the historic deal.

A Lawrence Livermore National Laboratory scientist offers some post-blast survival tips.

Hagel ordered a review of the nuclear arsenal and the personnel in charge of the weapons following allegations of drug abuse.

The deal to curb Iran's nuclear ambitions may jumpstart the Iranian economy and generate more revenue for the regime's...

President Obama said that the $400M sent to Iran was part of the deal to rein in Iran's nuclear weapons program, not ransom...

President Donald Trump doubled down on his "fire and fury" threats against North Korea.