Fighting for Concessions in the Ukrainian Conflict

A May 1 cease-fire in eastern Ukraine between Ukrainian security forces and pro-Russia separatists is largely holding, for now. The cease-fire is likely Moscow's last chance to demonstrate its intent to execute security components of the Minsk protocols before the European Union reviews its sanctions on Russia in July. However, Kiev's desire to eradicate political infighting and maintain its Western support against Russia may prevent Ukraine from fully implementing the cease-fire unless Russia makes more security concessions....