Ukraine's president on Monday threatened military action after pro-Russian separatists occupying government buildings in the east ignored an ultimatum to leave and another group of rebels attacked a police headquarters in the troubled region. Acting president Oleksander...

Syrian opposition activists have posted photographs and video that they say shows an improvised chlorine bomb to back up claims that President Bashar al-Assad's forces used chemical weapons in two attacks last week. Rebels and the government have blamed each other for the...

Syrian warplanes on Sunday launched an offensive against a string of opposition bastions on the edges of the capital, including the besieged Eastern Ghouta area, a monitoring group said. "Warplanes carried out two air strikes against areas of Douma," northeast of Damascus, killing 13...