The United States is not considering returning to Ukraine the nuclear weapons the country previously agreed to give up under the Budapest Memorandum, U.S. National Security Advisor Jake Sullivan ...

The U.S. “will have to out-think” Russia and China to prevent them from using nuclear weapons to resolve a future crisis, the ...

Brandon Williams served aboard a nuclear submarine and represented a New York congressional district for one term, but has ...

The administration of new US president Donald Trump is reportedly considering various options to prevent Iran from being able ...

“The President’s Arsenal” (editorial, Dec. 17) makes clear that nuclear war is the single greatest risk facing the United States and the world. President-elect Donald Trump seems to ...

Iran must make a first step towards improving relations with countries in the region and the United States by making it clear ...

Russia has warned Donald Trump not to resume testing nuclear weapons when he returns to office next year, adding it would 'not rule anything out' in response to perceived US aggression. Sergei ...

The United States is not considering returning to Ukraine the nuclear weapons it gave up after the Soviet Union collapsed, White House national security adviser Jake Sullivan said on Sunday.

The supreme leader announced he is prohibiting the development of nuclear weapons, which may be part of an effort to initiate ...

Iran could have an operational nuclear weapon within "weeks, maybe days," a former Israeli ambassador to the U.S. said, as Israel closely watches whether Iran could quickly pivot and produce such ...