welcome back to icymi. all around the world, cnn reporters and photographers are on the front lines in war zones. on the ground coverage is what this network is built on and these people are risking their lives this moment. first we go to syria where the worst fighting in that country's civil war rages on tonight. >> reporter: it's a war of snipers in this damascus suburb. we're on the front line with government forces in the south of syria's capital. soldiers say their mission is to stop rebels from advancing into the city center. opposition fighters occupy buildings a few yards away.