MOSCOW — Ukrainians vote Sunday in an early presidential election that could be a crucial step toward resolving the country's crisis, but separatists in the east are threatening to block the vote. The election — which comes six months after the outbreak of protests that led to the president's ouster and a deepening chasm between pro-Europe and pro-Russia Ukrainians — aims to unify the fiercely divided country or at least discourage further polarization.
A look at the vote:
