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 ...

Russian Foreign Minister Sergei Lavrov said on Saturday that work is under way on President Vladimir Putin's order to prepare ...

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

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 ...

Ukrainian strikes disrupted power and heating to two major Russian cities near the Ukrainian border, local Russian officials ...

By holding nuclear drills and boasting about the successful test of a pioneering nuclear-powered cruise missile, Russian ...

North Korea's top diplomat has visited the Kremlin for talks with Russian President Vladimir Putin. The meeting follows last ...

Again and again, the Russian president’s campaign of nuclear intimidation against Europe and NATO rings hollow.

A Feminist History of Modern Russia, from Revolution to Autocracy” is to take a rambling ride — or a crash course if this is ...