Iran has stepped up nuclear work since 2019, after US President Donald Trump in his first term abandoned a 2015 agreement.

The U.S. government wants to select "disparate" locations where it could eventually make bomb-grade uranium again.

The Semipalatinsk Test Site, also called the Polygon, is lesser known but was used by the Soviet Union to test nuclear ...

The National Nuclear Security Administration is a semi-autonomous agency within the Department of Energy that oversees the ...

Only Donald Trump can make the call to launch U.S. nuclear-armed ICBMs. Our reporter visits the subterranean world of the ...

Former President Ronald Reagan entered office known as a fire-breathing hawk. He left office having signed major agreements ...

The world's chemical weapons watchdog on Friday said it had once again found traces of tear gas on the frontline with Russia ...

Ukrainian President Volodymyr Zelenskiy said on Friday that the only Russian official he was prepared to talk to was ...

Opinion: The U.S. Defense Department might benefit from leveraging commercial technology more aggressively, argue RAND ...

US Vice President JD Vance warned Russia that Washington could hit Moscow with sanctions if it does not agree to a good peace ...

The US Air Force will launch an intercontinental ballistic missile (ICBM) in Southern California next week to test and flex the military’s readiness to use nuclear force. The unarmed Minuteman III ...