The last major nuclear arms control treaty between Russia and the United States expires on Thursday, ushering in an era ...

President Donald Trump wants a new nuclear arms treaty with Russia and China instead of extending the expired New START ...

The last remaining nuclear arms pact between Russia and the United States is set to expire this week, removing any caps on ...

The United States on Friday accused China of carrying out a secret nuclear test in 2020 as the Trump administration calls for a broader nuclear weapons agreement including both China and Russia.

Since the collapse of the old Soviet Union, Russia has cut a substantially diminished figure on the international stage.

Zero is how much uranium President Trump says he would allow Iran to enrich — or refine into a potency suitable for nuclear ...

The Kremlin says it regrets the expiration of the last remaining nuclear arms pact between Russia and the United States, ...

The State Department warned Americans in Iran they cannot "rely on U.S. government help." ...

Repairs at key missile sites began soon after they were hit by Israeli and U.S. strikes last year, but work at Iran’s nuclear ...

Suggesting Iran could suffer the same fate as Venezuela, Trump warns Tehran to negotiate a new nuclear agreement, or face ...

All but one of the fund's awards have been for organizations operating in East Tennessee, a historic center of nuclear ...

President Trump is pushing for a nuclear deal with Iran. For weeks, he has demanded that the country enter negotiations and ...