Hassan Jarrah/AFP/Getty Images
  • 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.
    NurPhoto/Getty Images
  • Syrian refugee children take part in activities organized by the non-profit "Beyond Association" in Saadnayel, Lebanon, July 16, 2016.
    Hassan Jarrah/AFP/Getty Images
  • The Vasilika refugee camp is a military-run refugee camp located in an old warehouse in Vasilika village, Greece, July 11, 2016.
    NurPhoto/Getty Images
  • 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.
    AFP/Getty Images
  • 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.
    Chris McGrath/Getty Images
  • 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.
    Getty Images
  • 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.
    AFP/Getty Images
  • 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.
    Getty Images
  • 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.
    Getty Images
  • 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.
    Getty Images
  • 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.
    Getty Images
  • 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.
    David Ramos/Getty Images
  • 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.
    AFP/Getty Images
  • 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.
    Adam Berry/Getty Images
  • 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.
    Armend Nimani/AFP/Getty Images
  • 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.
    Christopher Furlong/Getty Images
  • 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.
    Srdjan Stevanovic/Getty Images
  • 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
  • Refugees stand behind a fence at the Hungarian border with Serbia near the town of Horgos on Sept. 16, 2015.
    Armend Nimani/AFP/Getty Images
  • Migrants shout slogans as they stand in front of a barrier at the border with Hungary near the village of Horgos, Serbia, Sept. 16, 2015.
    Stoyan Nenov/Reuters
  • This picture taken by a drone shows stranded refugees at the border station between Serbia and Hungary near Horgos, Serbia, early Sept. 16, 2015. Later in the day, refugees clashed with police who used tear gas and a water cannon to disperse the crowd.
    Istvan Ruzsa/MTI/AP Photo
  • Children of refugees sleep at the Hungarian border with Serbia near the town of Horgos on Sept. 16, 2015.
    Armend Nimani/AFP/Getty Images
  • Refugees walk near Horgos, Serbia, near the border station between Serbia and Hungary, Sept. 16, 2015.
    Sandor Ujvari/MTI/AP Photo
  • A migrant sits on the ground arrested by Hungarian authorities after he tried to cross the border between Serbia and Hungary in Roszke, Hungary, Sept. 15, 2015.
    Matthias Schrader/AP Photo
  • Refugees walk along a barbed wire barrier a the border of Hungary and Serbia, near Roszke, Hungary, Sept. 14, 2015.
    Geovien So/Pacific Press/LightRocket via Getty Images
  • Hungarian police officers guard the area as a rail wagon adorned with barbwire arrives to seal the border fence between Serbia and Hungary in Roszke, southern Hungary, Sept. 14, 2015.
    Matthias Schrader/AP Photo
  • Police register refugees at a train station on Sept. 14, 2015 in Freilassing, Germany.
    Sebastian Widmann/Anadolu Agency/Getty Images
  • Britain's Prime Minister David Cameron meets Syrian refugee families at a tented settlement camp in the Bekaa Valley on the Lebanese-Syrian border, Sept. 14, 2015.
    Stefan Rousseau/AFP/Getty Images
  • Pictograms and Arab writing on a makeshift sign show the way to a rest area and medical treatment in an emergency shelter for refugees on Sept. 14, 2015 at the railway station in Salzburg, Austria.
    Philipp Guelland/Getty Images
  • Hungarian police officals stand guard at the border line between Hungary and Serbia near Roszke on Sept. 14, 2015 as the border fence with Serbia was closed by Hungarian police.
    Attila Kisbenedek/AFP/Getty Images
  • Refugees walk along a railway track at the Hungary-Serbia border, near the town of Horgos, on Sept. 14, 2015.
    Armend Nimani/AFP/Getty Images
  • Police try to stop refugees that are leaving Nickelsdorf, Austria at the border with Hungary, Sept. 14, 2015.
    Ronald Zak/AP Photo
  • A German Federal Police officer holds a stop sign to control vehicles coming from Austria, at the Austrian-German border, Sept. 14, 2015. Honking cars with stressed drivers banked up for miles at the Austrian-German road crossing, hours after Berlin reimposed border checks to control a massive refugee influx.
    Guenter Schiffmann/AFP/Getty Images
  • Refugees queue to board a train at the railway station in Roszke, Hungary, on Sept. 14, 2015.
    Thomas Campean/Anadolu Agency/Getty Images
  • Refugees gather on a platform at the railway station on Sept. 14, 2015 in Salzburg, Austria.
    Philipp Guelland/Getty Images
  • In this Sept. 13, 2015 photo taken with slow shutter speed, migrants walk towards a checkpoint along railway tracks near Roszke, near the border between Hungary and Serbia.
    Balazs Mohai/MTI/AP Photo
  • Refugee children wait near a registration camp in the southern Serbian town of Presevo, Sept. 11, 2015.
    AFP/Getty Images
  • Refugees queue at a registration camp in the southern Serbian town of Presevo, Sept. 11, 2015.
    AFP/Getty Images
  • A refugee woman waits inside of a tent near a registration camp in the southern Serbian town of Presevo, Sept. 11, 2015.
    AFP/Getty Images
  • A refugee helps his daughter to run at the railway track after he crossed the Serbian-Hungarian border near Roszke, southern Hungary, Sept. 11, 2015.
    Matthias Schrader/AP Photo
  • Refugees queue at a registration camp in the southern Serbian town of Presevo, Sept. 11, 2015.
    AFP/Getty Images
  • A mother breastfeeds her baby in front of piles of rubbish at a migrant collection point in Roszke, Hungary, Sept. 11, 2015.
    Laszlo Balogh/Reuters
  • A family waits in the rain for transportation away from a transit area close to the Serbian border to a refugee camp at dawn on Sept. 10, 2015 in Roszke, Hungary.
    Dan Kitwood/Getty Images
  • A man from Syria displays his temporary residency permit at a home for refugees in Hohenmoelsen, Germany on Sept. 10, 2015.
    Hendrik Schmidt/AFP/Getty Images
  • Migrants and refugees arrive by dinghy behind a huge pile of life vests after crossing from Turkey to the island of Lesbos Greece, Sept. 10, 2015.
    Petros Giannakouris/AP Photo
  • Syrian refugees stand outside their tents at a refugee camp in the town of Deir Zanoun, Bekaa Valley, Lebanon, Sept. 10, 2015. The UNHCR has said there are about 1,150,000 Syrian refugees registered in Lebanon, equal to a quarter of Lebanon's population of 4.5 million. Beirut estimates there are another 500,000 unregistered Syrians in the country.
    Bilal Hussein/AP Photo
  • A woman cries as she crawls through a block of border police in the southern Macedonian town of Gevgelija, Sept. 10, 2015.
    Borce Popovski
  • Macedonian border police help refugees and migrants to pass from the northern Greek village of Idomeni to southern Macedonia, Sept. 10, 2015. Thousands of people braved torrential downpours to cross Greece's northern border with Macedonia early Thursday.
    Giannis Papanikos/AP Photo
  • Refugees beg Macedonian policemen to allow passage to cross the border from Greece into Macedonia during a rainstorm, near the Greek village of Idomeni, Sept. 10, 2015.
    Yannis Behrakis/Reuters
  • Refugees from Syria and Iraq take selfies with German Chancellor Angela Merkel outside a camp near the Federal Office for Migration and Refugees in Berlin, Sept. 10, 2015.
    Fabrizio Bensch/Reuters
  • A woman and her baby wait for a bus that will take them to the center for asylum seekers near Roszke, southern Hungary, Sept. 10, 2015.
    Darko Vojinovic/AP Photo
  • Migrants and refugees protect themselves under sheeting from the rain as they wait to cross the Greek-Macedonian border near the village of Idomeni, in northern Greece, Sept. 10, 2015.
    Sakis Mitrolidis/AFP/Getty Images
  • A refugee child stands in an Athens central square where hundreds of mainly Afghani refugees have found temporary shelter without running water or toilets, Sept. 10, 2015.
    Louisa Gouliamaki/AFP/Getty Images
  • Refugees sleep in a central square in Athens where hundreds of mainly Afghani refugees have found temporary shelter, Sept. 10, 2015.
    Louisa Gouliamaki/AFP/Getty Images
  • Refugee children sit under covers as they wait near a registration camp in the town of Presevo after their arrival in Serbia, on Sept. 10, 2015.
    Armend Nimani/AFP/Getty Images
  • A refugee holds a map at the railway station in Malmoe, southern Sweden, on Sept. 10, 2015. Sweden has become a top EU destination for refugees by issuing permanent residency to Syrian asylum seekers.
    Ola Torkelsson/TT News Agency/AFP/Getty Images
  • Syrian refugees queue to apply for immigration outside the German Embassy on the northern outskirts of Beirut, Sept. 10, 2015.
    Joseph Eid/AFP/Getty Images
  • Syrian refugees queue to apply for immigration outside the German Embassy on the northern outskirts of Beirut, Sept. 10, 2015.
    Joseph Eid/AFP/Getty Images
  • A man reacts after Hungarian police officers stop a group of refugees near a makeshift camp for asylum seekers in Roszke, southern Hungary, Sept. 9, 2015.
    Thomas Campean/Anadolu Agency/Getty Images
  • Hungarian police officers stop a group of refugees near a makeshift camp for asylum seekers in Roszke, southern Hungary, Sept. 9, 2015.
    Thomas Campean/Anadolu Agency/Getty Images
  • A refugee sleeps with her children on a ferry traveling from the northeastern Greek island of Lesbos to the Athens port of Piraeus, Sept. 9, 2015.
    Santi Palacios/AP Photo
  • Refugees and migrants recharge the batteries on their mobile phones, while on a ferry traveling from the northeastern Greek island of Lesbos to the Athens port of Piraeus, Sept. 9, 2015.
    Santi Palacios/AP Photo
  • A woman cries as she is embraced by a relative upon their arrival on the shores of the Greek island of Lesbos after crossing the Aegean Sea from Turkey on a dinghy, Sept. 9, 2015.
    Angelos Tzortzinis/AFP/Getty Images
  • Omer from Syria carries his cat Johnny on his shoulders at a collection point for refugees in the village of Roszke, Hungary, Sept. 9, 2015.
    Marko Djurica/Reuters
  • A man cross the border into Hungary from Serbia as he walks over railroad tracks at dusk on Sept. 9, 2015 in Roszke, Serbia.
    Dan Kitwood/Getty Images
  • People help a refugee woman as she arrives on the shore of Eftalou beach, north of the port city of Mytilini after crossing the Aegean Sea from Turkey on September 09, 2015 in Lesbos Island, Greece.
    Ayhan Mehmet/Anadolu Agency/Getty Images
  • Refugees are fed in a park near the port of Mytilini on Sept. 9, 2015 in Lesbos, Greece.
    Eric Thayer/Getty Images
  • A refugee sleeps near the port of Mytilini on Sept. 9, 2015 in Lesbos, Greece.
    Eric Thayer/Getty Images
  • A refugee sits with a thermal blanket wrapped around himself upon his arrival on the shores of the Greek island of Lesbos after crossing the Aegean Sea from Turkey on a dinghy on Sept. 9, 2015.
    Angelos Tzortzinis/AFP/Getty Images
  • Refugees from Syria and Iraq register with members of a charity organization to receive clothes after they arrive at the Hubert Renaud centre in Cergy-Pontoise near Paris, France, Sept. 9, 2015.
    Jacky Naegelen/Pool/AP Photo
  • Refugees and migrants wait for buses after disembarking from a government chartered ferry in the port of Piraeus, Greece, Sept. 9, 2015.
    Louisa Gouliamaki/AFP/Getty Images
  • Children peer from an overcrowded bus after disembarking with other migrants and refugees from the Greek government chartered Eleftherios Venizelos ferry in the port of Piraeus, Sept. 9, 2015.
    Louisa Gouliamaki/AFP/Getty Images
  • An aerial view shows tents at a camp for asylum-seekers on the grounds of the former army barracks Schmidt-Knobelsdorf-Kaserne in Berlin on Sept. 9, 2015.
    Ralf Hirschberger/DPA/AFP/Getty Images
  • A helper and a Syrian refugee boy are pictured at a donation center in Munich, Germany, Sept. 9, 2015.
    Christof Stache/AFP/Getty Images
  • Refugees from Syria and Iraq arrive at the Hubert Renaud Center in Cergy-Pontoise near Paris, France, Sept. 9, 2015.
    Jacky Naegelen/Pool/AP Photo
  • A migrant boy gestures while looking at a police officer near a makeshift camp for asylum seekers in Roszke, southern Hungary, Sept. 9, 2015.
    Darko Vojinovic/AP Photo
  • A woman hangs laundry at a refugee camp on the outskirts of Mytilini on Sept. 9, 2015 in Lesbos, Greece.
    Eric Thayer/Getty Images
  • A young boy waits at a refugee center in Champagne-sur-Seine, near Paris, France, Sept. 9, 2015.
    Christian Hartmann/Reuters
  • A young migrant lays on the road after passing out after local police threw tear gas near Roszke village on the Hungarian-Serbian border on Sept. 8, 2015.
    Attila Kisbenedek/AFP/Getty Images
  • Refugees are smuggled through a field in an attempt to evade the Hungarian police close to the Serbian border on Sept. 8, 2015 in Roszke, Hungary.
    Dan Kitwood/Getty Images
  • A refugee reacts after coming ashore near the village of Skala Sikamineas on Sept. 8, 2015 in Lesbos, Greece.
    Eric Thayer/Getty Images
  • Refugees come ashore near the village of Skala Sikamineas on Sept. 8, 2015 in Lesbos, Greece.
    Eric Thayer/Getty Images
  • Refugees are surrounded by police officers after they broke out from the migrant collection point near Roszke village at the Hungarian-Serbian border on Sept. 8, 2015.
    Attila Kisbenedek/AFP/Getty Images
  • A girl cries as she waits on a bus which will transport her family to the metro station after their arrival from the northeastern Greek island of Lesbos to the Athens' port of Piraeus on Sept. 8, 2015.
    Thanassis Stavrakis/AP Photo
  • Migrants try to locate family members who were separated from them on the other side of a Hungarian police line while attempting to board a train bound for Austria at the Keleti railway station on Sept. 8, 2015 in Budapest, Hungary.
    Win McNamee/Getty Images
  • Migrants from Iraq are stopped by German police officers after walking on a federal highway near the A3 in Passau, Germany, Sept. 8, 2015.
    Michael Dalder/Reuters
  • Refugees who arrived by train are greeted by locals welcoming them with soap bubbles and balloons at the Jahn-Sporthalle gymnasium in Berlin, Sept. 8, 2015.
    Sean Gallup/Getty Images
  • A police officer hits a man with a baton as he tries to maintain order while migrants wait for trains at a temporary camp near Gevgelija, Macedonia, Sept. 7, 2015.
    Stoyan Nenov/Reuters
  • An exhausted migrant holds his son as he speaks to a police officer at a collection point in the village of Roszke, Hungary, Sept. 7, 2015.
    Laszlo Balogh/Reuters
  • Refugees board a train after crossing the Macedonian-Greek border near Gevgelija, Macedonia, Sept. 6, 2015.
    Stoyan Nenov/Reuters
  • Refugees wait to be boarded to buses from the Austrian-Hungarian border to a train station in the Austrian village of Nickelsdorf on Sept. 5, 2015 to take a train to Vienna.
    JOE KLAMAR/AFP/Getty Images
  • Refugees run to reach a train to Munich at the Westbahnhof Station on Sept. 5, 2015 in Vienna, Austria.
    Alex Domanski/Getty Images
  • Refugees smile as they arrive at the Westbahnhof Station in Vienna, Austria, Sept. 5, 2015.
    Alex Domanski/Getty Images
  • Refugees walk in the rain on the Austrian side of the Hungarian-Austrian border near Nickelsdorf after they crossed the border from Hungary, Sept. 5, 2015.
    Balazs Mohai/MTI via AP
  • Refugees arrive at the Hungarian-Austrian border in Nickelsdorf, Austria, Sept. 5, 2015.
    Frank Augstein/AP Photo
  • A woman carries her child as they arrive at the main train station in Munich, Germany, Sept. 5, 2015.
    Michael Probst/AP Photo
  • A woman looks out of a train that has stopped in Bicske, Hungary, Sept. 4, 2015.
    David Josek/AP Photo
  • Refugees cross the border, Sept. 2, 2015, between the Former Yugoslav Republic of Macedonia and Greece.
    Valdrin Xhemaj/EPA
  • A Syrian mother, who lost her baby when a boat sank off the coast of Mugla's Bodrum district killing 12 migrants, mourns in front of Bodrum State Hospital, Sept. 2, 2015, in Turkey.
    Ali Balli/Anadolu Agency/Getty Images
  • Syrian and Iraqi refugees sleep on railroad tracks waiting to be processed across the Macedonian border, Sept. 2, 2015, in Idomeni, Greece.
    Win McNamee/Getty Images
  • A Norwegian police officers patrols the bridge of the Siem Pilot ship carrying rescued migrants, Sept. 2, 2015, as they sail in the Mediterranean sea on their way to the Italian port of Cagliari.
    Gregorio Borgia/AP Photo
  • Tents are set up in a park where migrants have found temporary shelter near the immigration office, Sept.2, 2015, in Brussels.
    Thierry Roge/AFP/Getty Images
  • Red Crescent workers collect the body of a drowned refugee, who washed up along with several others, Sept. 1, 2015, in Zuwara, Libya.
    Mohamed Ben Khalifa/AP Photo
  • Personnel hold two metal crosses during the burial of the 51 refugees whose lifeless bodies were discovered in the hull of a boat north of Libya on Aug. 26, 2015, at the Palermo cemetery, Italy, Sept. 1, 2015.
    Alessandro Fucarini/AP Photo
  • Camp of migrants is seen at the Franco-Italian border, Sept. 1, 2015, in Ventimiglia, Italy.
    Lionel Cironneau/AP Photo
  • Migrants wear ID bracelets aboard of the Norwegian Siem Pilot ship during a migrant search and rescue mission, Sept. 1, 2015, off the Libyan Coasts.
    Gregorio Borgia/AP Photo
  • A man holding a boy reacts as they are stuck between Macedonian riot police officers and refugees during a clash near the border train station of Idomeni, northern Greece, as they wait to be allowed by the Macedonian police to cross the border from Greece to Macedonia, Aug. 21, 2015.
    Darko Vojinovic/AP Photo
  • Police officers confront refugees at the railway station, Aug. 19, 2015, in the southern Macedonian town of Gevgelija. Macedonia has become is a major transit route for people heading from Greece to more prosperous European Union countries.
    Darko Vojinovic/AP Photo
  • A man, hiding under a train, Aug. 17, 2015, tries to sneak on a train towards Serbia, at the railway station in the southern Macedonian town of Gevgelija.
    Boris Grdanoski/AP Photo
  • A Macedonian police officer blocks refugees at no-man's land between Greece and Macedonia near the southern Macedonian town of Gevgelija, Aug. 20, 2015.
    Darko Vojinovic/AP Photo
  • Migrants wait to disembark from the Croatian Coast Guard ship SB72 Andrija Mohorovicic, Aug. 16, 2015, at the Augusta harbor, near Siracusa, Sicily, Italy.
    Carmelo Imbesi/AP Photo
  • A member of the Macedonian special police forces guards the illegal border crossing between Macedonia and Greece, Aug. 21, 2015, where migrants have been waiting for 24 hours on the Greek side of the border to cross into Macedonia, near the southern city of Gevgelija,
    Georgi Licovski/EPA
  • Migrants sleep in a camp, August 14, 2015, under the 'Cite de la Mode' in Paris, France.
    Marechal Aurore/AP Photo
  • Refugees arrive at at the southeastern island of Kos, Greece, Aug. 15, 2015.
    Alexander Zemlianichenko/AP Photo
  • Refugees wait to cross the Macedonian-Greek border, Aug. 20, 2015, near the town of Gevgelija, Macedonia.
    AFP/Getty Images
  • Members of the Hungarian Defence Force install barbed wire on the Hungarian-Serbian border, Aug. 17, 2015, to prevent people from entering the country near Kelebia village in Hungary.
    Arpad Kurucz/Getty Images
  • A aid worker holds a young girl, Aug. 17, 2015, as migrants are disembark from the Norwegian ship Siem Pilot at Catania harbor, Italy.
    Carmelo Imbesi/AP Photo
  • A Macedonian police officer tries to stop a person from getting into the window of a full train heading to the Serbian border, Aug.15, 2015, at the train station in Gevgelija, The Former Yugoslav Republic of Macedonia.
    Georfi Licovski/EPA
  • A man covers his face on the deck of the Croatian vessel SB 72 Mohorovicic, Aug. 17, 2015, prior to being disembarked at Reggio Calabria harbor, Italy.
    Adriana Sapone/AP Photo
  • Syrian refugees waiting in line to register with the police authorities, Aug. 27, 2015, at Mytilini port on the island of Lebos, Greece.
    AFP/Getty Images
  • A migrant stands in front of an Ethiopian Orthodox church erected in the migrant camp, Aug. 20, 2015, northern France.
    Michel Spingler/AP Photo
  • Syrian refugees arrive at a beach on the Greek island of Kos after crossing a part of the Aegean sea from Turkey to Greece in a dinghy on Aug. 15, 2015, in Kos, Greece.
    Milos Bicanski/Getty Images
  • Refugees wait outside the police station which serves as their registration center, Aug.15, 2015, in the town of Kos at the southeastern Greek island of Kos.
    Louisa Gouliamaki/AFP/Getty Images
  • Refugees wait to cross the Macedonian-Greek border near the town of Gevgelija. Macedonian special police forces arrived this morning, Aug. 20, 2015, and blocked the illegal border crossing between Macedonia and Greece.
    AFP/Getty Images
  • Migrants disembark from the Norwegian ship Siem Pilot , Aug. 17, 2015, at the Sicilian harbour of Catania, Italy. The Siem Pilot pulled into the port of Catania on Monday carrying 49 migrant bodies believed to have suffocated in the water-logged hold of a fishing boat and some 416 migrants rescued at sea.
    Antonio Parrinello/ Reuters
  • Refugees hold signs as they wait at the border line of Macedonia and Greece, Aug. 20, 2015, to enter into Macedonia near Gevgelija railway station. Thousands of people wait in a small Macedonian town in the hope of traveling onward to Western Europe.
    Ognen Teofilovski/Reuters
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