Border

 Bulgarian border police personel patrols next to a barbed wire wall fence erected on the Bulgaria-Turkey border near the town of Lesovo,

Nikolay Doychin/AFP/Getty Images

Bulgarian border police personnel patrols next to a barbed wire wall fence erected on the Bulgaria-Turkey border near the town of Lesovo

A young boy pushes a wheelbarrow with wood next to a young girl on September 1, 2016  the Turkish-Syrian border town of Karkamis, in the southern region of Gaziantep, near Syrian-Turkish border town of Jarabulus

Bulent Kilic/AFP/Getty

A young boy pushes a wheelbarrow with wood next to a young girl on the Turkish-Syrian border town of Karkamis, in the southern region of Gaziantep, near Syrian-Turkish border town of Jarabulus

TOPSHOT - A boy sits on a bus as he waits to be transferred to a reception centre during an evacuation operation by Greek police forces of the makeshift camp at the Greek-Macedonian border, near the village of Idomeni, on May 24, 2016. In an operation which began shortly after sunrise on May 24, hundreds of Greek police began evacuating the sprawling camp which is currently home to 8,400 refugees and migrants, among them many families with children, an AFP correspondent said. At its height, there were more than 12,000 people crammed into the site, many of them fleeing war, persecution and poverty in the Middle East and Asia, with the camp exploding in size since Balkan states began closing their borders in mid February in a bid to stem the human tide seeking passage to northern Europe

Yannis Kolesidisyannis/AFP

A boy sits on a bus as he waits to be transferred to a reception centre during an evacuation operation by Greek police forces of the makeshift camp at the Greek-Macedonian border, near the village of Idomeni, on today. 

A young Palestinian waits at the Rafah border crossing with Egypt

AFP/Getty Images

A young Palestinian waits at the Rafah border crossing with Egypt, in the southern Gaza Strip, after it was opened for two days by Egyptian authorities on Thursday

A pot over a bonfire was placed on the tracks of a railway station turned into a makeshift camp, crowded by migrants and refugees at the northern Greek border point of Idomeni, Greece, Monday, April 25, 2016. Many thousands of migrants remain at the Greek border with Macedonia, hoping that the border crossing will reopen, allowing them to move north into central Europe. (AP Photo/Gregorio Borgia)

Gregorio Borgia/AP Photo

A pot over a bonfire was placed on the tracks of a railway station turned into a makeshift camp, crowded by migrants and refugees at the northern Greek border point of Idomeni, Greece today. Many thousands of migrants remain at the Greek border with Macedonia, hoping that the border crossing will reopen, allowing them to move north into central Europe.

Macedonian Army soldiers patrol between the two-line fence set along the border line between Macedonia and Greece, near southern Macedonian town of Gevgelija

Boris Grdanoski/AP

Macedonian Army soldiers patrol between the two-line fence set along the border line between Macedonia and Greece, near southern Macedonian town of Gevgelija

Migrants play soccer at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, March 30, 2016.

Marko Djurica/Reuters

Migrants play soccer at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece today.

Macedonian soldiers patrol beside the two-line protective fence set along the border between Macedonia and Greece, near southern Macedonia's town of Gevgelija, Friday, March 4, 2016. Thousands of refugees and migrants continue to wait on the border between Greece and Macedonia on Thursday morning. At the moment, some 30,000 refugees and other migrants are stranded in Greece, with 10,000 at the Idomeni border crossing to Macedonia. (AP Photo/Visar Kryeziu)

Visar Kryeziu/AP

Macedonian soldiers patrol beside the two-line protective fence set along the border between Macedonia and Greece, near southern Macedonia’s town of Gevgelija

Refugees walk to a registration camp after crossing the border  Greek-Macedonian near the town of Gevgelija

Dimitar Dilkoff/AFP

Refugees walk to a registration camp after crossing the Greek-Macedonian border near the town of Gevgelija

Refugees from Afghanistan sit beside railway tracks near a transit center for refugees at the Macedonian-Serbian border in the northern Macedonian village of Tabanovce, Monday, Feb. 22, 2016. More than 600 Afghan refugees were stranded since Saturday at the transit center while waiting for a permission to cross the border into Serbia. Serbia says the decision to block refugees from Afghanistan from passing through the so-called Balkan migrant corridor has been made by Austria and Slovenia. (AP Photo/Boris Grdanoski)

Boris Grdanoski/AP Photo

Refugees from Afghanistan sit beside railway tracks near a transit center for refugees at the Macedonian-Serbian border in the northern Macedonian village of Tabanovce today. More than 600 Afghan refugees were stranded since Saturday at the transit centre while waiting for a permission to cross the border into Serbia. Serbia says the decision to block refugees from Afghanistan from passing through the so-called Balkan migrant corridor has been made by Austria and Slovenia.

A migrant wrapped in a blanket to keep warm waits at a registration camp in southern Serbian town of Presevo on January 22, 2016, after crossing the Macedonian border.  As refugees continued to flow from Greece through the Balkans on their way to western Europe, aid workers sounded alarms over inadequate shelter from the current freezing temperatures and snowy conditions, particularly for children.

Dimitar Dilkoff/AFP

A migrant wrapped in a blanket to keep warm waits at a registration camp in southern Serbian town of Presevo on Friday, after crossing the Macedonian border

Israeli reserve soldiers from the 77 battalion of the 7th brigade from the armored corps check their gear during an exercise in the Israeli controlled Golan Heights, near the border with Syria, Monday, Jan. 11, 2016.

Ariel Schalit/AP

Israeli reserve soldiers from the 77 battalion of the 7th brigade from the armored corps check their gear during an exercise in the Israeli controlled Golan Heights, near the border with Syria, Monday

Migrants and refugees walk on Friday after crossing the Macedonian border in the Serbian village of Miratovac. Migrants and refugees are facing deteriorating weather conditions as they make their way to the EU via the Balkans. Despite cold and heavy rain, thousands of  migrants continue to arrive in Serbia. More than a million refugees and migrants arrived in Europe in 2015 in the worst crisis of its kind to face the continent since World War II.

Armend Nimanian/AFP

Migrants and refugees walk on Friday after crossing the Macedonian border in the Serbian village of Miratovac. Migrants and refugees are facing deteriorating weather conditions as they make their way to the EU via the Balkans

A child looks out of a bus window after walking from the Macedonian border into Serbia, in the village of Miratovac, Serbia, Wednesday, Jan. 6, 2016. Hundreds of migrants continue to arrive daily into Serbia in order to register and continue their journey further north towards Western Europe

Visar Kryeziu/AP

A child looks out of a bus window after walking from the Macedonian border into Serbia, in the village of Miratovac, Serbia, Wednesday. Hundreds of migrants continue to arrive daily into Serbia in order to register and continue their journey further north towards Western Europe

Cuban migrants rest at a border post with Panama in Paso Canoas

Juan Carlos Ulate/Reuters

Cuban migrants rest at a border post with Panama in Paso Canoas, Costa Rica. Hundreds of Cubans are stranded on the border between Costa Rica and Panama, after the government of Costa Rica decided not to give them more transit visas, according to local media.

A man sits on rail tracks as migrants and refugees wait to cross the Greek-Macedonian border near Idomeni on December 8, 2015.  Since last week, Macedonia has restricted passage to northern Europe to only Syrians, Iraqis and Afghans who are considered war refugees. All other nationalities are deemed economic migrants and told to turn back, leaving over 1,500 people stuck on the border, mostly Indian, Moroccan, Bangladeshi and Pakistani.

Sakis Mitrolidis/AFP

A man sits on rail tracks as migrants and refugees wait to cross the Greek-Macedonian border near Idomeni on Thursday.
Macedonia has restricted passage to northern Europe to only Syrians, Iraqis and Afghans who are considered war refugees

Palestinians try to get in a bus to cross into Egypt at the Rafah border crossing between Egypt and the southern Gaza Strip December 4, 2015. Egypt opened the Rafah border crossing on Thursday for two days to allow Palestinians on humanitarian grounds to travel in and out of the Gaza Strip, officials said.

braheem Abu Mustafa/Reuters

Palestinians try to get in a bus to cross into Egypt at the Rafah border crossing between Egypt and the southern Gaza Strip on Friday. Egypt opened the Rafah border crossing on Thursday for two days to allow Palestinians on humanitarian grounds to travel in and out of the Gaza Strip

TOPSHOT - A man carrying a baby cries af...TOPSHOT - A man carrying a baby cries after crossing the Greek-Macedonian border with other migrants and refugees, near the town of Gevgelija, on December 4, 2015. Since last week, Macedonia has restricted passage to northern Europe to only Syrians, Iraqis and Afghans who are considered war refugees. All other nationalities are deemed economic migrants and told to turn back. Over 1,500 people are stuck on the border, mostly Indians, Moroccans, Bangladeshis and Pakistanis.

Armend Nimania/AFP

A man carrying a baby cries after crossing the Greek-Macedonian border with other migrants and refugees, near the town of Gevgelija. Macedonia has restricted passage to northern Europe to only Syrians, Iraqis and Afghans who are considered war refugees. All other nationalities are deemed economic migrants and told to turn back. Over 1,500 people are stuck on the border 

A woman shouts as stranded migrants from Somalia protest in front of the border fence, demanding to cross the Greek-Macedonian border near the northern Greek village of Idomeni, Wednesday, Dec. 2, 2015. Hundreds of migrants are stranded on the Greek side, as dozens of them decided to go back in Athens, after Macedonia blocked access to citizens of countries that are not being fast-tracked for asylum in the European Union

Giannis Papanikos/AP

A woman shouts as stranded migrants from Somalia protest in front of the border fence, demanding to cross the Greek-Macedonian border near the northern Greek village of Idomeni, Wednesday

Migrants protest behind a fence against restrictions limiting passage at the Greek-Macedonian border, near Gevgelija, on December 1, 2015.  Since last week, Macedonia has restricted passage to northern Europe to only Syrians, Iraqis and Afghans who are considered war refugees. All other nationalities are deemed economic migrants and told to turn back. Macedonia on November 29 finished building a fence on its frontier with Greece becoming the latest country in Europe to build a border barrier aimed at checking the flow of migrants.

Armend Nimania/AFP

Migrants protest behind a fence against restrictions limiting passage at the Greek-Macedonian border, near Gevgelija, on Tuesday.
Since last week, Macedonia has restricted passage to northern Europe to only Syrians, Iraqis and Afghans who are considered war refugees