The Kremlin says it regrets the expiration of the last remaining nuclear arms pact between Russia and the United States, while President Donald Trump declared he was against keeping its limits and wants a better deal.

Nuclear treaty between U.S. and Russia has expired, leaving world's largest arsenals uncapped as Trump demands new deal and Moscow warns agreement "impossible."

The last remaining nuclear treaty between the U.S. and Russia has expired, ending decades of arms control between the two countries with the largest nuclear arsenals.

The last major nuclear arms control treaty between Russia and the United States expires on Thursday, ushering in an era without constraints set by the world’s largest nuclear powers

Experts warn that the expiration of a long-standing nuclear arms control treaty between the two superpowers could mark the start of a new nuclear rivalry.

A nuclear treaty first signed in 2010 is expiring this week. If it's not replaced, experts say a global arms race could be in the cards.

The last treaty curbing atomic weapon production from Russia and the US has ended, meaning there are now no restrictions

Since the collapse of the old Soviet Union, Russia has cut a substantially diminished figure on the international stage.

The last remaining nuclear arms pact between Russia and the United States is set to expire this week, removing any caps on the two largest atomic arsenals for the first time in more than a half-century.

The treaty is set to lapse Thursday, with Russia saying it had not heard from US officials.

The expiration of the last remaining nuclear treaty between the United States and Russia on Thursday has sparked fears about a nuclear arms race, with the two biggest nuclear superpowers without limits on their arsenals for the first time in decades.