Nuclear Weapons

As the nation remembers the anniversary of Japan's capitulation on Aug. 15, 1945, Lawrence Johnston's story is unique.

Ukraine is not a NATO member, but several of its neighbors, including Poland, Slovakia, Hungary and Romania, are.

The Navy uses animals like dolphins and sea lions to protect ships from divers and mines through the U.S. Navy Marine Mammal...

Even if Russia was completely defeated in a nuclear war, it's not.

The prospect of a nuclear exchange between Russia and the U.S. seemed, until recently, to have ended with the Cold War.

U.S. officials said they had seen no sign that Putin's order has been followed by significant changes in the Russian nuclear...

Oppenheimer was the lead scientist for the secret Manhattan Project that developed nuclear weapons during WWII.

These weapons of war are "overrated" in the sense that they occupy a larger space in the defense-security conversation than...

The U.S. special envoy for Iran, Robert Malley, told reporters there is a “deep and growing” concern about Iran’s continued...

The consensus comes amid growing concerns that Tehran is not serious about returning to the negotiations.