Add Yahoo as a preferred source to see more of our stories on Google. Russia's Yars intercontinental ballistic missile system unit drives in Red Square during a military parade on Victory Day, marking ...

For the first time in more than half a century, there are no binding restraints on the buildup of the largest nuclear forces on Earth. The New START treaty expired on Feb. 5, 2026, ending the last ...

The real break came on Feb. 24, 2022, when Russia invaded Ukraine. After that, the nuclear arms control regime began to unravel, and it has become very difficult to repair. The Biden administration ...

Separated by an ocean and more than a decade, innovative experiments with 31 tin isotopes having either a surplus or shortage ...

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. "We've halted many years ago, but with others doing testing I think it's ...

Since the end of the Cold War, a new nuclear order has emerged, shaped by rising nuclear states and military technologies that threaten stability, writes George Mason University’s Gregory Koblentz in ...

The last surviving US-Russia nuclear treaty is set to expire Thursday, leaving the world without a critical safeguard against an escalating arms race. The New Strategic Arms Reduction Treaty (New ...

Deterring Russia, collecting motherly advice and sending postmortem postcards, through readers’ eyes.

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Iain Boyd, University of Colorado Boulder (THE CONVERSATION) Russian President ...