President Trump’s post raises technical questions about how and if the United States could “immediately” return to nuclear ...

Escalating an arms race that could bring about Armageddon is only part of the reason Trump's push to resume testing is ...

President Donald Trump appears to have ordered a return to nuclear testing after decades of uneasy but effective treaties ...

By Thomas P. Grumbly President Trump has ordered (with some walkback by his Energy Secretary) the resumption of U.S. nuclear weapons testing — a potential tit-for-tat response to recent Russian ...

The nuclear weapons testing ordered by U.S. President Donald Trump will not involve nuclear explosions at this time, Energy Secretary Chris Wright said on Sunday.

Trump's announcement breaks with more than three decades of policy. The last time the United States tested a nuclear weapon ...

Russian President Vladimir Putin ordered his top officials on Wednesday to draft proposals for a possible test of nuclear ...

All of the nine nuclear-armed nations are investing huge sums in new weapons. And the numbers of nuclear weapons “available ...

ABOARD AIR FORCE ONE — President Donald Trump declined to say Friday whether he plans to resume underground nuclear detonation tests, as he had seemed to suggest in a social media post this week that ...

Russian President Vladimir Putin on Wednesday said that Russia would consider resuming nuclear tests for the first time since ...