A recent study estimates that some 2,800 Westerners have gone to Syria to fight, and most have joined the Islamic State of Iraq and the Sham or the Al Nusrah Front. President Assad celebrated his reelection by granting amnesty to 300 inmates at Aleppo Central Prison and over 500 at Adra prison in Damascus province. The Al Nusrah Front and the Islamic Front battled regime forces in Homs; Latakia; Reef Dimashq; and Aleppo, where they were joined by the al Mujahideen Army, and a rebel brigade blew up a tunnel, cutting off water to the city for several days. The Islamic State of Iraq and the Sham clashed with Al Nusrah and the Islamic Front in Deir Izzour, where the ISIS agreed with Al Nusrah and the Islamic Front to leave the town of Kasham alone and the Abdullah ibn Al Zobayr battalions would be allowed to guard the town.