Ukraine's leader warned on April 28 that a war with pro-Russian separatists could still break out again as its military said the rebels had greatly stepped up attacks and widened the area of their operations despite a ceasefire.
Ukraine's leader warned on April 28 that a war with pro-Russian separatists could still break out again as its military said the rebels had greatly stepped up attacks and widened the area of their operations despite a ceasefire.