The UN has made its largest ever global appeal for a single crisis, seeking $6.5bn to deal with the growing humanitarian problem in Syria.
Syrian-Kurdish refugees walk in an alley of the Quru Gusik refugee camp, 20 kilometres east of Arbil, the capital of the autonomous Kurdish region of northern Iraq, on August 27, 2013. More than 50,000 Syrian refugees have crossed into Iraq's Kurdish region in less than two weeks, an official said on August 26, 2013, as authorities rush to house them in more permanent camps. (AFP/Getty Images)
