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 ...

Russia has repeatedly struck Ukraine's energy infrastructure, risking a nuclear disaster.

If nothing replaces the New START nuclear arms treaty, security analysts see a more dangerous environment with a higher risk ...

U.S. and Iranian officials held indirect talks on Friday over the Islamic Republic’s nuclear program in Oman as Tehran looks ...

NEW JERSEY ELECTION: There’s no official winner yet in the Democratic primary for the special election in New Jersey’s 11th ...

The U.S. is seeking "zero nuclear capability" from Iran, the White House said.

Russian and U.S. negotiators discussed the expiration of the last remaining nuclear arms pact between the two countries and ...

For the first time in nearly a half-century, the United States and Russia don't have any restraints on their arsenals.

Iranian and U.S. officials will hold talks Friday in Oman over the Islamic Republic's nuclear program after weeks of tensions ...

LONDON/WASHINGTON, Feb 6 (Reuters) - The Trump administration's plan to unleash a wave of small futuristic nuclear reactors ...

Iran and the United States are poised Friday to hold negotiations in Oman at least over Tehran’s nuclear program ...

Beijing, Moscow and shaken American allies are seeking new warheads as President Trump ends more than a half century of ...