Russia has told the United States that it will not attend a 2016 nuclear security summit, the State Department said on Wednesday, in the latest sign of frosty ties between Washington and Moscow.

• November 5, 2014

Russia has moved troops closer to the border with Ukraine and continues to support rebels in the country's east, NATO's chief said on Tuesday, after an election held by the pro-Russian separatists and condemned by Kiev and Western leaders.

• November 4, 2014

Pro-Russian separatists in eastern Ukraine staged swearing in ceremonies for their leaders on Tuesday after votes dismissed as a farce by Kiev, which says they violated terms of a peace plan to end a war that has killed more than 4,000 people.

• November 4, 2014

China will dispatch an elite unit of the People's Liberation Army to help Ebola-hit Liberia, the Foreign Ministry said on Friday, responding to U.N. calls for a greater global effort to fight the deadly virus in West Africa.

• October 31, 2014

Hong Kong's pro-democracy protests have escalated into a national security issue threatening Chinese sovereignty over the Asian financial center, a delegate to China's rubber-stamp parliament said on Thursday.

• October 30, 2014

parliamentary election in Ukraine offers a chance for peace in the country's east, a deputy Russian foreign minister said on Monday but warned that "nationalists" in the chamber could undermine the process.

• October 27, 2014

The burnt-out remains of dozens of tanks and armored vehicles in fields near this small village bear witness to the ferocity of a battle that turned the tide of the conflict in eastern Ukraine.

• October 23, 2014

Christophe de Margerie, the charismatic and outspoken chief executive of the French oil company Total (TOTF.PA), was killed when his private jet hit a snow plow as it was taking off from Moscow's Vnukovo airport on Monday night.

• October 21, 2014