Ukraine's President Vows to Take Back East from Pro-Russia Rebels

Ukrainian President Petro Poroshenko has visited troops in the eastern part of the country where the military forced out pro-Russia rebels. While the two sides prepare for what could be a final battle, Moscow and Kyiv say a negotiated ceasefire is still possible - though some political analysts say Russia's strategic objective is to prolong the conflict. More from VOA's Daniel Schearf in Moscow.