TO GO WITH AFP STORY BY SAMMY KETZ Syrian Christans look on during the mass at the Greek Orthodox church in the Syrian government controlled area in the northern city of Aleppo on November 16, 2014. Tens of thousands of Christians have fled homes in Syria's war-wracked second city of Aleppo but many others are determined to hold out despite their dread of Islamic State jihadists. According to Fabrice Balanche, a French university lecturer and expert on Syria, only around one million residents remain out of the city's pre-war population of 2.5 million. From its 250,000 Christians, 'more than half have left, and there are only 100,000 left, 50,000 of them Armenians,' said Balanche. AFP PHOTO/ JOSEPH EID        (Photo credit should read JOSEPH EID/AFP/Getty Images)