FILE-This file photo released on Monday, June 18, 2012 by the anti-government activist group Rebels Battalion of Baba Amro, which has been authenticated based on its contents and other AP reporting, shows Syrian rebels holding their weapons as they prepare to fight against Syrian troops, in Homs province, Syria. Rebels make their last stand in Homs, fighting desperately to cling to their last bastion in the city’s old quarters as emboldened forces loyal to President Bashar Assad launch a fierce assault to evict them completely from the city once known as the capital of the revolution. (AP Photo/Rebels Battalion of Baba Amro, File)