Trump's comments last month sparked fears of a new nuclear arms race and concerns major powers would restart full testing.

I don't see Trump being afraid of Russia using nuclear weapons,” Ukrainian historian Serhii Plokhy told Newsweek.

Lieutenant General Alexander Sollfrank said Russia could now launch a limited incursion against Nato territory ...

MOSCOW (Reuters) -Russian Foreign Minister Sergei Lavrov said on Saturday that work is under way on President Vladimir ...

The Kremlin on Friday dismissed speculation that Russian Foreign Minister Sergei Lavrov had fallen out of favour with ...

Hungary’s prime minister Viktor Orban will meet president Donald Trump at the White House on Friday to seek exemptions from ...

The attack in Dnipro, Ukraine’s fourth-largest city, was part of a large Russian missile and drone barrage across the country ...

Russian President Vladimir Putin has vowed to bring back the Russian empire; indeed, he has staked his political fortunes on ...

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

Ukraine is increasingly striking at energy and arms targets in Russia.

Russian President Vladimir Putin has ordered officials to submit proposals for a possible resumption of nuclear tests in ...

Russian President Vladimir Putin says the country will explore the possibility of carrying out fresh nuclear tests after US ...