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 ...

Hours before meeting President Xi Jinping of China on Thursday, President Trump made a confounding proclamation: He wanted the Pentagon to “start testing our nuclear weapons on an equal basis” with ...

Earlier this week, Russian President Vladimir Putin revealed that his government has finalized testing of a new nuclear weapon and a nuclear-powered vehicle he claims would give his country a major ...

LIVERMORE, Calif. (WPVI) -- What was once highly classified can now be found on YouTube-- and this isn't a leak. The Lawrence Livermore National Lab is beginning to publish thousands of films of U.S.

President Donald Trump wrote on Truth Social, his social media site, that he had instructed the Department of War (formerly the Defense Department) to return to “nuclear testing” — although it’s ...

Beijing/Seoul, South Korea (CNN) — President Donald Trump on Thursday vowed to begin testing US nuclear weapons “on an equal basis” with Russia and China, heralding a potentially major shift in ...