President Donald Trump "will decide the path forward on nuclear arms control, which he will clarify on his own timeline," a White House official told Breaking Defense.

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 still doing it — have confused experts in nuclear ...

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a shallow concavity in the sand, and killed no one that we ...

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 “on an equal basis” to keep pace with other ...

Nuclear weapons tests were once a regular occurrence, but most countries haven’t tested in decades, following the adoption of the Comprehensive Nuclear-Test-Ban Treaty in 1996. Now, that moratorium might be nearing an end. Politicians, including U.S ...

Resuming full testing of nuclear weapons — as President Donald Trump called for last week — would be unnecessary, costly, undermine nonproliferation efforts, and empower the nation’s adversaries to use their own tests as intimidation, experts told ...

As the United States and Russia signal a return to nuclear testing, Australia’s remote monitoring station plays a crucial role in global verification.

MOSCOW — Russian President Vladimir Putin ordered officials on Wednesday to submit proposals for a possible resumption of nuclear tests in response to President Donald Trump’s statements last week that appeared to suggest the U.S. will restart its own ...