A group of men try to warm up next to a bonfire on a beach shortly after their arrival in a dinghy, with other refugees and migrants, from the Turkish coast to the northeastern Greek island of Lesbos, on Monday, Nov. 30, 2015. The International Organization for Migration said almost 900,000 people fleeing conflict and poverty in the Middle East, Africa and Asia have entered Europe this year seeking sanctuary or jobs. More than 600,000 have entered through Greece, many after making the short sea crossing from Turkey. (AP Photo/Santi Palacios)
A group of men try to warm up next to a bonfire on a beach shortly after their arrival in a dinghy, with other refugees and migrants, from the Turkish coast to the northeastern Greek island of Lesbos, on Monday, Nov. 30, 2015. The International Organization for Migration said almost 900,000 people fleeing conflict and poverty in the Middle East, Africa and Asia have entered Europe this year seeking sanctuary or jobs. More than 600,000 have entered through Greece, many after making the short sea crossing from Turkey. (AP Photo/Santi Palacios) Santi Palacios AP
A group of men try to warm up next to a bonfire on a beach shortly after their arrival in a dinghy, with other refugees and migrants, from the Turkish coast to the northeastern Greek island of Lesbos, on Monday, Nov. 30, 2015. The International Organization for Migration said almost 900,000 people fleeing conflict and poverty in the Middle East, Africa and Asia have entered Europe this year seeking sanctuary or jobs. More than 600,000 have entered through Greece, many after making the short sea crossing from Turkey. (AP Photo/Santi Palacios) Santi Palacios AP