Syrian government forces enter Palmyra, drive back Islamic State: monitors

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 since December, the Syrian Observatory for Human Rights monitoring group reported.Islamic State has captured Palmyra, whose ancient ruins are a UNESCO World Heritage Site, twice during Syria's six-year conflict.The army recaptured the city from the ultra-hardline group in March last year, but Islamic State seized it again in Dec