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  • A migrant sits outside of his tent at the premises of the disused Hellenikon airport, where refugees and migrants are temporarily housed in Athens July 31, 2016.
    Angelos Tzortzinis/AFP/Getty Images
  • The Vasilika refugee camp is a military-run refugee camp located in an old warehouse in Vasilika village near central Macedonia, Greece, July 11, 2016.
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  • Syrian refugee children take part in activities organized by the non-profit "Beyond Association" in Saadnayel, Lebanon, July 16, 2016.
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  • The Vasilika refugee camp is a military-run refugee camp located in an old warehouse in Vasilika village, Greece, July 11, 2016.
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  • Syrian refugees are seen in Suruc district of Sanliurfa, Turkey, July 1, 2016, as the Syrian people who fled the clashes between Daesh and Kurdish armed groups about two years ago, make preparations for the Eid al-Fitr which marks the end of the Muslim holy fasting month of Ramadan by preparing sweets.
    Halil Fidan/Anadolu Agency/Getty Images
  • Children play in the courtyard of an abandoned school used by volunteers for hosting Syrian and Afghan refugees in Athens, July 1, 2016.
    Aris Messinis/AFP/Getty Images
  • A Syrian woman in a food line at the refugee camp near Idomeni, Greece, at the border with Macedonia, May 10, 2016. She holds a 9-day-old baby who was born in the camp. About 54,000 migrants are currently stranded in Greece, and 10,000 are at the Idomeni camp. The European Union and Turkey have reached a deal designed to stem the flow of refugees and migrants to Europe.
    Petros Giannakouris/AP Photo
  • Syrian refugee boys fly a kite in a Syrian refugee camp in the Bekaa Valley, Lebanon, May 17, 2016.
    Mohamed Azakir/Reuters
  • <p> Farah Sheikh Ahmed,&nbsp;19, from&nbsp;Idlib, Syria, with her daughter, Maram, in a tent made of blankets given by the UNCHR, the United Nations refugee agency, at the&nbsp;Idomeni camp,&nbsp;May 14, 2016.&nbsp;Maram, the family's first child, was born April 20 at the hospital in the nearby town of Kilkis.&nbsp;Ahmed is one of dozens of stranded&nbsp;women who have given birth after the Greek-Macedonia border was closed in early March 2016.</p>
    Petros Giannakouris/AP Photo
  • A 5-month-old Syrian baby sleeps inside a tent at &nbsp;the Idomeni camp, May 16, 2016.&nbsp;
    Petros Giannakouris/AP Photo
  • Nasser Darwish, a young&nbsp;Syrian refugee, makes drawings to sell with his brother on Gemmayzeh Street in Beirut, the Lebanese capital,&nbsp;May 14, 2016.
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  • A young Syrian refugee boy makes shoe parts in a Turkish owned factory on May 16, 2016 in Gaziantep, Turkey. Turkey's massive and largely unregulated garment industry is an attractive option for Syrians to work both legally and illegally despite low wages, long hours and poor conditions.
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  • A refugee camp in Kilis, Turkey, a Turkish border city grappling with a population of Syrian refugees larger than its own, has high hopes for the first-ever World Humanitarian Summit slated for May 23-24, 2016 in Istanbul.
    Xinhua/Newscom
  • A Syrian refugee girl stands outside tents at a refugee camp in Osmaniye, Turkey, May 17, 2016.
    Umit Bektas/Reuters
  • Syrian refugees stroll at a refugee camp in Osmaniye, Turkey, May 17, 2016.
    Umit Bektas/Reuters
  • Syrian refugee children play with a wagonette at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, May 23, 2016.
    Kostas Tsironis/Reuters
  • A Syrian refugee toddler is seen outside of a refugee camp in Turkey's Syrian Border city Hatay's Kirikhan District, Feb. 16, 2016.
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  • Refugees, aboard a train that would take them towards Serbia, look at Czech Republic police officers who maintain the order at the transit center for refugees, near the southern Macedonia's town of Gevgelija, Feb. 14, 2016.
    Boris Grdanoski/AP Photo
  • Loula, 18, a Yemeni refugee and Mohammed, 20, a Palestinian refugee from Lebanon exchange rings during their engagement party at the center for refugees in Kofinou, Cyprus, Feb. 16, 2016.
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  • Refugees walk towards the Serbia border from the transit center for refugees near northern Macedonian village of Tabanovce, Feb. 12, 2016.
    Boris Grdanoski/AP Photo
  • An art installation by Chinese artist Ai Weiwei showcases thousands of used life vests by refugees from the Greek island of Lesbos, Feb. 14, 2016 in Berlin.
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  • Afghan asylum seeker Roheek Yausofi waits his turn for food cooked on an open fire, with fish caught the day before by his father, on the island of Seiland, northern Norway, Feb. 2, 2016.
    Alastair Grant/AP Photo
  • A view of a dormitory at the new relocation center for refugees and migrants in the western Athens' suburb of Schisto, Feb. 16, 2016.
    Petros Giannakouris/AP Photo
  • A woman cries as Syrians fleeing the northern embattled city of Aleppo wait in Bab-Al Salama, next to the city of Azaz, northern Syria, near Turkish crossing gate, Feb. 5, 2016.
    Bulent Kilic/AFP/Getty Images
  • Syrians try to live inside a wrecked vehicle at a refugee camp at the Bab al-Salameh border crossing on Turkish-Syrian border near Azaz town of Aleppo, Syria, Feb. 9, 2016.
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  • A man reflects while standing in front of graves in Mytilene, Greece, Feb. 17, 2016, at a graveyard for refugees and migrants who drowned in their attempt to cross the Aegean sea from Turkey to the island of Lesbos.
    Aris Messinis/AFP/Getty Images
  • A refugee warms himself at a bonfire at the Turkish border crossing gate as Syrians fleeing the northern embattled city of Aleppo wait on Feb. 6, 2016 in Bab al-Salama, near the city of Azaz, northern Syria.
    Bulent Kilic/AFP/Getty Images
  • Refugee children are taught at a makeshift school in the "Jungle" camp in the port town of Calais, France, Feb. 16, 2016.
    AFP/Getty Images
  • A view of the refugee camp in Hammerfest, northern Norway, is seen, Feb. 4, 2016.
    Alastair Grant/AP Photo
  • Syrians, who fled the bombing in Aleppo, wait in line to get food at a tent city close to the Bab al-Salam border crossing on Turkish-Syrian border near Azaz town of Aleppo, Syria ,Feb.10, 2016.
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  • A Syrian 2 year old baby Zehra and Eye Halip, who fled bombing in Aleppo, are seen with their mother Belkiz Halip at a tent city close to the Bab al-Salam border crossing on Turkish-Syrian border near Azaz town of Aleppo, Syria, Feb. 11, 2016.
    Getty Images
  • Turkish humanitarian aid organization members distribute humanitarian aids for Syrians, who fled bombing in Aleppo at a tent city close to the Bab al-Salam border crossing on Turkish-Syrian border near Azaz town of Aleppo, Syria, Feb. 13, 2016.
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  • A Syrian kid, who fled bombing in Aleppo, walks amid tents at a tent city close to the Bab al-Salam border crossing on Turkish-Syrian border near Azaz town of Aleppo, Syria, Feb.13, 2016.
    Getty Images
  • Migrants and refugees board a train heading to Serbia from the Macedonian-Greek border near Gevgelija, Feb. 14, 2016.
    AFP/Getty Images
  • Malakeh Jazmati (wearing headscarf), a Syrian refugee who used to have a cooking show on Syrian TV, and her husband Mohammad Alghamian show guests how to prepare a Syrian specialty at a cooking workshop in Berlin, Feb. 14, 2016.
    AFP/Getty Images
  • Refugees sit on a table at a playground, Feb. 10, 2016, in Kladesholmen, Sweden.
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  • Syrian refugees fled the Russian bombings in their country are seen in their shelter in Hatay, Turkey, Feb. 16, 2016.
    Burak Milli/Anadolu Agency/Getty Images
  • Turkish Coast Guard personnel throw ropes at refugees who were holding onto buoys after toppling over a fishermen dinghy en route to Greece on Jan. 22, 2016 in Didim district of Aydin, Turkey. 4 refugees body including 3 children pulled out of the water as Turkish coast guard personnel rescued 43 others.
    Emin Menguarslan/Anadolu Agency/Getty Images
  • A man carries his child as they walk with other migrants and refugees after crossing the Macedonian border into Serbia near the village of Miratovac, Jan. 19, 2016.
    AFP/Getty Images
  • A migrant carries a child as they walk through a frozen field after crossing the border from Macedonia, near the village of Miratovac, Serbia, Jan. 18, 2016.
    Marko Djurica/Reuters
  • An Afghan man sits in front of a burnt dismantled shelter in the camp known as the "Jungle", a squalid sprawling camp in Calais, northern France, Jan. 19, 2016.
    Pascal Rossignol/Reuters
  • Migrants and refugees walk along snow covered tracks after crossing the Macedonian border into Serbia, near the village of Miratovac, Jan. 18, 2016.
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  • Bodies of the three children and a woman are buried after a boat carrying Afghan refugees sank off near the Ahmetce neighborhood of Ayvacik district in Canakkale, Turkey, Jan. 19, 2016.
    Mehmet Yavas/Anadolu Agency/Getty Images
  • Two young women from Afghanistan wait to be registered in the Tabakika registration center, Jan. 15, 2016.
    Petros Giannakouris/AP Photo
  • A woman from Syria holds her baby as she rests on board a MOAS (Migrant Offshore Aid Station) ship after being rescued while attempting to reach the Greek island of Agathonisi, Dodecanese, southeastern Agean Sea, overnight on Jan. 16, 2016.
    AFP/Getty Images
  • Ahmad Zarour, 32, from Syria, reacts after his rescue by MOAS (Migrant Offshore Aid Station) while attempting to reach the Greek island of Agathonisi, Dodecanese, southeastern Agean Sea, overnight on Jan. 16, 2016.
    AFP/Getty Images
  • Syrian refugees, stuck between the Jordanian and Syrian borders, wait to cross into Jordan, at the Hadalat border crossing, east of the Jordanian capital Amman, Jan.14, 2016.
    AFP/Getty Images
  • Graves of the refugees, who fled the war in their countries and died in the Aegean sea on their way to Europe, are seen at the common grave near the World Peace Monument in Izmir, Turkey, Jan. 14, 2016.
    Emin Menguarslan/Anadolu Agency/Getty Images
  • A refugee walks in a camp in Grande-Synthe near Dunkirk, northern France, Jan. 12, 2016.
    AFP/Getty Images
  • A refugee walks after crossing the Macedonian border into Serbia near the village of Miratovac, Jan.10, 2016.
    AFP/Getty Images
  • Migrants and Refugees walk to a transit camp after they landed on a rubber boat on the shores of Lesbos on Jan.5, 2015 near Skala Sikaminias, Greece.
    Etienne De Malglaive/Getty Images
  • A volunteer sorts out orange life jackets from a huge pile as MSF / Doctors Without Borders and Greenpeace set up a giant peace symbol made of life vests (not pictured) used by refugees in Lesbos near Molivos, Greece, Jan. 1, 2016.
    Etienne De Malglaive/Getty Images
  • Syrian refugee women queue for food aid in Ankara, Turkey, Dec. 22, 2015.
    Guven Yilmaz/Anadolu Agency/Getty Images
  • Children at a migrant shelter stand in line to receive presents from a volunteer dressed as Santa Claus, Dec. 14, 2015 in Berlin.
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  • A member of the Turkish Coast Guard pulls an inflatable dinghy transporting Syrian migrants attempting to reach the Greek island of Chios, in the Agean Sea near Izmir in the night, Dec.10, 2015.
    AFP/Getty Images
  • Refugees and migrants embark on a ferry after arriving from Turkey, Dec. 8, 2015, at the port of Mytiline in Lesbos.
    AFP/Getty Images
  • A group of migrants and refugees wait to cross the Greek-Macedonian border near the village of Idomeni, Dec. 6, 2015.
    AFP/Getty Images
  • Migrants and refugees wait to cross the Greek-Macedonian border near the town of Gevgelija, Dec. 4, 2015.
    AFP/Getty Images
  • Refugees wait to cross the Greek-Macedonian border as policemen from both sides stand guard, near the northern Greek village of Idomeni, Dec. 3, 2015.
    Giannis Papanikos/AP Photo
  • Members of several Afghan families try to warm up next to a bonfire outside a processing center in Moria village on the northeastern Greek island of Lesbos, Dec. 3, 2015.
    Santi Palacios/AP Photo
  • A refugee keeps warm by a fire in a camp, Dec. 1, 2015, in Calais, France.
    Jeff J Mitchell/Getty Images
  • Refugees collect wood as they contend with wintery conditions in a camp, Dec. 1, 2015, in Calais, France.
    Jeff J Mitchell/Getty Images
  • Refugees make warm drinks on an open fire as they contend with wintery conditions in a camp, Dec. 1, 2015, in Calais, France.
    Jeff J Mitchell/Getty Images
  • Refugees collect wood as they contend with wintery conditions in the camp, Dec. 1, 2015, in Calais, France.
    Jeff J Mitchell/Getty Images
  • Refugees wait in the snow in front of a heated tent at the Austrian-German border hear Hanging, Austria, Nov. 22, 2015.
    Armin Weigel/AP Images
  • An asylum seeker carrying her baby waits to enter Germany during a snow shower at the German-Austrian border near Hanging, Austria, Nov. 21, 2015. The start of winter is also affecting the refugees in the border region.
    Armin Weigel/AP Images
  • A Syrian refugee family, who fled the civil war in their country, sit on the floor in their tent in Van, Turkey, Nov. 16, 2015. As the weather cools down in the Eastern Anatolia Region of Turkey, Syrian refugees has begun making preparations for winter in their makeshift houses.
    Ozkan Bilgin/Anadolu Agency/Getty Images
  • A refugee waits for transport to Slovenia after he registered at a new winter refugee camp in Slavonski Brod, Croatia, Nov. 3, 2015.
    Antonio Bronic/Reuters
  • A girl reacts after receiving tear gas during clashes between refugees and Hungarian police at the border with Serbia near the town of Horgos on Sept. 16, 2015.
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  • A refugee girl is overcome by tear gas after Hungarian police repelled an attempt to break the border post gate and pull down the razor wire fence on Sept. 16, 2015 in Horgos, Serbia.
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  • Migrants run as Hungarian riot police fires tear gas and water cannon at the border crossing with Serbia in Roszke, Hungary, Sept. 16, 2015. Hungarian police fired tear gas and water cannon at protesting migrants demanding they be allowed to enter from Serbia on the second day of a border crackdown
    Marko Djurica/Reuters
  • A man stands in the road as Hungarian riot police use a water cannon to push back refugees at the Hungarian border with Serbia on Sept. 16, 2015.
    Armend Nimani/AFP/Getty Images
  • Hungarian police use pepper spray at the "Horgos 2" border crossing into Hungary, near Horgos, Serbia, Sept. 16, 2015.
    Darko Vojinovic/AP Photo
  • Hungarian police use pepper spray against refugees at the Horgos border after Hungarian authorities closed their border on Sept. 16, 2015 in Horgos, Serbia.
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  • Hungarian riot policemen run as they are deployed at the border crossing with Serbia in Roszke, Hungary Sept. 16, 2015. Hungarian riot police, backed by water cannon and armoured vehicles, moved into position at a border crossing on Wednesday where migrants were demanding they be allowed to cross from Serbia, a U.N. official at the scene told Reuters.
    Dado Ruvic/Reuters