Amateur video which can not be independently verified by Reuters appears to show a rebel tank taking aim at a military base in Deraa.<br/> <br />The onslaught comes just days after Syrians went to the polls reelecting President Bashar al Assad by an overwhelming majority.<br/> <br />More footage appears to show smoke rising from the base.<br/> <br />The election in Syria won praise from Iran, Russia and the Lebanese based Hezbollah. U.S. Secretary of State John Kerry described the vote as a "great big zero".<br/> <br />It's done little to stop the violence. Footage out of Aleppo purports to show shells hitting a building housing government forces.<br/> <br />In Damascus Province the familiar sight of smoke on the horizon in the wake of an airstrike.<br/> <br />After more than three years of war, millions have fled the violence -- which has already killed more than 160,000 people.