Dozens of Syrian government troops have been filmed surrendering to rebels after they were abandoned by their comrades at a town south of Aleppo. The men are filmed being led at gunpoint by rebel fighters who shout at the prisoners and chant, “Allahu Akbar”. The prisoners, who are not wearing military uniforms, run across sand dunes towards a group of buildings with their hands behind their heads. They were captured after being left behind by retreating Assad forces near the town of Khanaser, some 50 miles southeast of Aleppo, which was seized by rebels on Saturday. Since the shock rebel...