Tents housing displaced Syrians are seen in camp on the southern outskirts of the northern Syrian city of Aleppo on October 22, 2015. Tens of thousands of Syrians have fled their homes south of the second city Aleppo since a government offensive there began last week, a UN agency said. Syrian government forces began a new offensive south of Aleppo city on October 17, backed by Russian air strikes. AFP PHOTO /KARAM AL-MASRI (Photo credit should read KARAM AL-MASRI/AFP/Getty Images)