Secretary of State Marco Rubio warned Tuesday that the United States would give up on mediation unless Russia and Ukraine put forward “concrete proposals,” ...

U.S. Secretary of State Marco Rubio said on Tuesday that now is the time for concrete proposals from Moscow and Kyiv to end ...

From Dominic Lieven, Fellow of the British Academy, Honorary and Emeritus Fellow, Trinity College, University of Cambridge, UK ...

WASHINGTON: The US says it will step away from peace talks between Russia and Ukraine if both sides don’t come up with clear ...