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 ...

Prior to his meeting with China’s President Xi Jinping in Busan, South Korea on October 30, United States President Donald Trump wrote that he has ordered the U.S. military to resume nuclear testing ...

Though the country’s nuclear arsenal has undergone no explosive testing for decades, federal experts say it can reliably obliterate targets halfway around the globe. By William J. Broad President ...

Mr. Hennigan writes about national security issues for Times Opinion. Hours before meeting President Xi Jinping of China on Thursday, President Trump made a confounding proclamation: He wanted the ...

President Donald Trump’s announcement this month that the United States would restart nuclear weapons testing on an “equal basis” with other nations — alluding to unverified claims that Moscow and ...