SIKAMINIAS, GREECE - NOVEMBER 14:  A migrant boat passes a passenger ferry as it makes the crossing from Turkey to the Greek island of Lesbos on November 14, 2015 in Sikaminias, Greece. Rafts and boats continue to make the journey from Turkey to Lesbos each day as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. Over 500,000 migrants have entered Europe so far this year and approximately four-fifths of those have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Most of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan.  (Photo by Carl Court/Getty Images)