More On Nuclear Weapons

The United States will share closely held technology to allow South Korea to build a nuclear-powered submarine.

By holding nuclear drills and boasting about the successful test of a pioneering nuclear-powered cruise missile, Russian...

Williams, 58, will oversee the nation’s nuclear arsenal as the administrator of the National Nuclear Security Administration.

Lt. Col. James H. "Jimmy" Doolittle famously led the first U.S. strike against the Japanese homeland during World War II, and...

In a statement, the Russian Foreign Ministry linked the decision to efforts by the U.S. and its allies to develop...

An amendment added to the House version of a must-pass national defense bill calls for more research and scrutiny into cancer...

President Donald Trump said the strikes, which he described as “very successful,” had hit the Natanz, Fordo and Isfahan sites...

Iranian media said at least 95 people were wounded and that several residential buildings in the capital’s suburbs were hit...

Tsutomu Yamaguchi's story is the subject of author Charles Pellegrino's new book "Ghosts of Hiroshima," which is due to hit...

If not for a Spanish fisherman who saw something and said something, the U.S. Air Force might never have recovered a missing...