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Refugees who fled the Iraqi city of Mosul due to the fighting between government forces and Islamic State (IS) group jihadists, queue for heating fuel at the UN-run al-Hol refugee camp in Syria's Hasakeh province, on January 29, 2017. / AFP / DELIL SOULEIMAN (Photo credit should read DELIL SOULEIMAN/AFP via Getty Images)

Refugees who fled the Iraqi city of Mosul due to the fighting between government forces and Islamic State (IS) group jihadists, queue for heating fuel at the UN-run al-Hol refugee camp in Syria's Hasakeh province, on January 29, 2017. / AFP / DELIL SOULEIMAN        (Photo credit should read DELIL SOULEIMAN/AFP via Getty Images)