A member of the "Al-Habib al-Mustafa" Brigades rides a horse as he carries an Islamist flag during a military display as part of a graduation ceremony for rebel fighters at a camp in eastern al-Ghouta, near Damascus September 4, 2014. Newly graduated rebel fighters, who went through military training, will join the brigades. REUTERS/Bassam Khabieh (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)