The U.S. and Russia have both recently threatened to resume nuclear testing, alarming the international community and ...

A limited test ban would set important guardrails to manage escalation among nuclear weapons states, particularly the U.S., ...

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. “We’ve halted many years ago, but with others doing testing I think it’s ...

President Donald Trump has called for the United States to test its nuclear weapons for the first time in three decades. But Trump’s statements about testing — in particular, whether other nations are ...

President Donald Trump on Thursday said he’s ordered the Defense Department to begin testing nuclear weapons “on an equal basis” with other countries, according to a post on his social media platform.

President Trump's comments about restarting weapons tests are not likely to lead to mushroom-cloud explosions over the New Mexico desert or seismic shaking underground in Nevada, according to the ...

Russian President Vladimir Putin said Wednesday his country will draw up plans to conduct nuclear tests after President Donald Trump announced the U.S. would do the same last week. The Kremlin leader ...

China's Foreign Ministry responded on Monday to President Trump's assertion that Beijing has conducted clandestine nuclear weapons testing with a flat denial. "China's testing 'em too," Mr. Trump told ...

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. “We’ve halted many years ago, but with others doing testing I think it’s ...