The United States is ready to carry out low-yield nuclear tests to match alleged secret explosions by China and Russia, ...

At a event in Washington D.C., A U.S. official said a remote earthquake in 2020 was caused by a Chinese nuclear test.

A senior US State Department official has flatly rejected suggestions that Washington and Moscow are informally continuing to observe the limits of the now-expired, nuclear-weapon-limiting New START ...

Officials from the United States and Iran met for three hours about Tehran’s nuclear program on Tuesday, with the Iranian foreign minister offering a vague but positive assessment of the talks. U.S.

U.S. envoys Steve Witkoff and Jared Kushner are also responsible for Russia-Ukraine talks nearby, so they may be shuttling ...

The U.S. Department of War airlifted a five-megawatt nuclear reactor built by Valar Atomics from California to Hill Air Force ...

He said both sides had agreed on a “set of guiding principles.” President Trump has called on Iran to make an immediate ...

Just as the talks got underway in Geneva, Iranian state media reported that parts of the strategic Strait of Hormuz will close while Iran’s Revolutionary Guard conducts military drills.

The second round of talks in Geneva about Iran's nuclear program takes place as the United States ramps up its military ...