Trump said the U.S. will test nuclear weapons “on an equal basis” with Russia and China. None of the three countries has tested live nuclear weapons since the 1990s.

US President Donald Trump has justified his move to resume nuclear testing, arguing that Washington cannot remain the only power observing restraint while Russia, China, and North Korea continue their...

Trump announced his plans for nuclear tests after Russia announced it had tested a new atomic-powered and nuclear-capable underwater drone and a new nuclear-powered cruise missile.