Ninety-year old Bakhtavar Nazary of Bamiyan, Afghanistan warms herself by a fire at the increasingly overwhelmed Moria camp on the island of Lesbos on October 23, 2015 in Mitilini, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number four-fifths of have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

A sick child waits as his father pleads with the authorities to let him into a gate to see a doctor at the migrant processing center at the increasingly overwhelmed Moria camp on the island of Lesbos on October 23, 2015 in Mytilene, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number four-fifths of have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

Migrants try to stay warm at the increasingly overwhelmed Moria camp on the island of Lesbos on October 23, 2015 in Mitilini, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number four-fifths of have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

A migrant with his sick child is told to go away by the police at the increasingly overwhelmed Moria camp on the island of Lesbos on October 23, 2015 in Mitilini, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number four-fifths of have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

A woman reaches for a child as migrants try to get onto a bus to take them to a processing center after arriving by boat from Turkey on October 22, 2015 in Sikaminias, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number, four-fifths have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

An Afghan man injured in fighting is helped as violence escalates for migrants waiting to be processed at the increasingly overwhelmed Moria camp on the island of Lesbos on October 22, 2015 in Mytilene, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number four-fifths of have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

Afghan men argue outside of the main gate as violence escalates for migrants waiting to be processed at the increasingly overwhelmed Moria camp on the island of Lesbos on October 22, 2015 in Mytilene, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number, four-fifths have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

An Afghan man injured in fighting is helped as violence escalates for migrants waiting to be processed at the increasingly overwhelmed Moria camp on the island of Lesbos on October 22, 2015 in Mytilene, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number, four-fifths have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

Afghan men argue outside of the main gate as violence escalates for migrants waiting to be processed at the increasingly overwhelmed Moria camp on the island of Lesbos on October 22, 2015 in Mytilene, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number, four-fifths have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

Afghan men argue outside of the main gate as violence escalates for migrants waiting to be processed at the increasingly overwhelmed Moria camp on the island of Lesbos on October 22, 2015 in Mytilene, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number four-fifths of have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

Afghan men struggle for a position outside of the main gate as violence escalates for migrants waiting to be processed at the increasingly overwhelmed Moria camp on the island of Lesbos on October 22, 2015 in Mytilene, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number four-fifths of have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

Migrants walk to a processing center in the rain after arriving by boat from Turkey on October 22, 2015 in Sikaminias, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number four-fifths of have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

Migrants cope with the wet and cool weather while waiting to be processed at the increasingly overwhelmed Moria camp on the island of Lesbos on October 21, 2015 in Mytilene, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number four-fifths of have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more

A group of migrants onto the beach from Turkey onto the island of Lesbos on October 21, 2015 in Sikaminias, Greece. Dozens of rafts and boats are still making the journey daily as thousands flee conflict in Iraq, Syria, Afghanistan and other countries. More than 500,000 migrants have entered Europe so far this year. Of that number four-fifths of have paid to be smuggled by sea to Greece from Turkey, the main transit route into the EU. Nearly all of those entering Greece on a boat from Turkey are from the war zones of Syria, Iraq and Afghanistan. Show more