Sanger discusses U.S. rivalry with the other two great nuclear powers—Xi Jinping’s China and Vladimir Putin’s Russia—the choices that lie ahead, and what is at stake for the United States ...

The Air Force has continually assured the public that the bomb is harmless. In the eighty years since the U.S. detonated two nuclear weapons in combat against Imperial Japan, it is a small miracle ...

SEOUL, South Korea — The powerful sister of North Korean leader Kim Jong Un on Wednesday mocked Washington and its Asian allies for what she called their “daydream” of denuclearizing the ...