In the grand arsenal of American military power, some weapons capture the imagination—the sleek lines of a fighter jet, the ...

China warns Russia against using nuclear weapons in the Ukraine war, potentially signaling a shift in geopolitical dynamics.

Welcome to an F.E. Warren Air Force Base secret underground missile bunker, where the dry desert air tastes like old socks.

North Korea is "no longer content to have its nuclear weapons and be left alone," a former senior U.S. official told Newsweek ...

The display is at the Poster House in New York City's Chelsea neighborhood until Sept. 7. The posters of the past are windows ...

Iran said Friday its foreign minister spoke by phone with his French, German and British counterparts to avoid the reimposition of U.N. sanctions over Tehran's nuclear program, just days ahead of a ...

The Trump administration plans to make available about 20 metric tons of Cold War-era plutonium from dismantled nuclear ...

When South Korean President Lee Jae Myung meets U.S. President Donald Trump next week for their first summit, he will be ...

Iran has long insisted its program is peaceful. The U.S., the IAEA and others say Iran had a nuclear weapons program up until ...

Iran plans to hold a call with France, Germany, and the UK as they threaten to reimpose UN sanctions over its nuclear program ...

Steve Hicks worked for 34 years at the Y-12 National Security Complex - which enriched the uranium for the atomic bomb that ...