[1/2]FILE PHOTO: Syrian army soldiers stand on the ruins of the Temple of Bel in the historic city of Palmyra, in Homs Governorate, Syria April 1, 2016. REUTERS/Omar Sanadiki/File Photo Acquire Licensing Rights BEIRUT (Reuters) - Russian-backed Syrian government forces and their allies fought their way into Palmyra on Wednesday, driving back Islamic State militants who have held the historic city