Add Yahoo as a preferred source to see more of our stories on Google. A subsurface atomic test near Yucca Flats, Nev., in March 1955. (U.S. Atomic Energy Commission via AP) (U.S. Atomic Energy ...

The United States is to resume nuclear weapons testing “immediately”, Donald Trump has announced, raising fears of renewed proliferation between the world’s two biggest stockpiles of atomic weaponry.

The US has likely stationed nuclear weapons in the UK for the first time since 2008, in a signal to Russian President Vladimir Putin that it remains committed to European security. On July 16, a US ...

In Japan and South Korea there is deepening concern over the reliability of long-time American security guarantees – whether the U.S. will come to their aid in the event of a war. This has been ...

When it comes to nuclear weapons strategy, stability is the goal. But President Donald Trump’s back-to-back announcements about nuclear testing and nuclear submarines on Oct. 29 during his trip to ...

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 ...

Robert Peters is a Senior Research Fellow for Strategic Deterrence in Heritage’s Allison Center for National Security. The United States and South Korea face increasingly dangerous threats in China ...

Experts warn that resumption of full nuclear weapons tests is unnecessary and would undermine the United States' efforts to discourage other nations from testing their own nukes. (Tech. Sgt. Draeke ...

In what would be a major shift in a decades-old American policy against global nuclear proliferation, President Trump says he has directed the Pentagon to “start testing” U.S. nuclear weapons “on an ...