By Edward McAllister and Aleksandar Vasovic BELGRADE, Feb 4 (Reuters) - Serbia is diversifying its energy supply away from ...

President Trump said he spoke to Chinese President Xi Jinping Wednesday to discuss a range of issues, including the war ...

Former Russian president Dmitry Medvedev posts a nuclear war warning as the New START arms control treaty between Moscow and ...

Russian figure skater Kamila Valieva's former coach is back at the Winter Olympics, this time working with a Georgian athlete ...

MOSCOW, Feb 5 (Reuters) - Russian President Vladimir Putin's envoy Kirill Dmitriev said on Thursday that there was progress ...

Russian President Vladimir Putin and Chinese leader Xi Jinping held a video call Wednesday to discuss the burgeoning economic ...

The last major nuclear arms control treaty between Russia and the United States expires on Thursday, ushering in an era ...

The last remaining nuclear arms pact between Russia and the United States expires Thursday, removing caps on their atomic ...

As the second round of Ukraine peace talks in less than two weeks ran into a second day Russian and Ukraine negotiators said ...

Little has been made public so far, but negotiators were expected to talk about the fate of Ukrainian territory in the east ...

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 ...