European leaders threatened new sanctions unless Moscow accepted a cease-fire right away. President Trump seemed to endorse the idea of a meeting between Ukraine’s and Russia’s presidents, and said he might take part.

By Anton Kolodyazhnyy, Steve Holland and Lidia Kelly MOSCOW/WASHINGTON (Reuters) -U.S. President Donald Trump's offer to join proposed Ukraine-Russia peace talks triggered a flurry of diplomacy as powers from Europe to the Middle East sought a possible path out of the deadliest conflict in Europe since World War Two.

The Ukrainian leader’s move appears to designed to ramp up pressure on Vladimir Putin.