Kyiv, Ukraine - Ukrainian President Petro Poroshenko ordered his forces to cease fire on June 20 and halt military operations for a week against pro-Russia separatists in the country's east - the first step in a peace plan he hopes will end the conflict that has cost more than 350 lives.
Russia's War Against Ukraine
CBS News: Poroshenko unveils peace plan; Moscow calls it an ultimatum
Pro-russian armed rebels in Donetsk.
