North Korean leader Kim Jong-Un says his scientists have successfully miniaturized thermo-nuclear warheads to place on a ballistic missile and...
North Korea has threatened a pre-emptive nuclear strike as U.S. and South Korean forces began their largest joint exercises ever...
Leader Kim Jong-Un has ordered North Korea's nuclear arsenal readied for pre-emptive use at anytime, in an expected ramping up...
Minuteman III intercontinental ballistic missiles (ICBMs) that make up one part of the American nuclear deterrent remain highly relevant to...
Nuclear threats and climate change pose strong threats to the planet and a symbolic "doomsday" clock will stay at three...
Iran has removed the core of its Arak heavy water reactor and filled part of it with cement, a crucial...
Iran will sell part of its stock of heavy water to the United States under its nuclear deal with world...
China is unlikely to take strong action in response to North Korea's claimed test of a hydrogen bomb, according to...
Hydrogen bombs, which North Korea said Wednesday it tested for the first time, have a destructive power to dwarf even...
North Korea said Wednesday it had carried out a "successful" hydrogen bomb test, a claim that -- if true --...