[caption id="attachment_41406" align="aligncenter" width="976"]Two migrants carry a child in a pram as they walk towards the Hungarian border from Botovo, Croatia September 24,2015. A trade war erupted between Serbia and Croatia on Thursday over the flow of migrants across their border, dragging relations between the ex - Yugoslav republics to their lowest ebb since the overthrow of late Serbian strongman Slobodan Milosevic in 2000. REUTERS / Antonio Bronic[/ caption][caption id = " attachment _ 41407 " align = " aligncenter " width = " 976 "]Republican presidential candidate Donald Trump addresses the crowd at an event organised by the Greater Charleston Business Alliance and the South Carolina African American Chamber of Commerce in North Charleston, South Carolina, September 23,2015. REUTERS / Randall Hill[/ caption][caption id = " attachment _ 41408 " align = " aligncenter " width = " 976 "]President Barack Obama shakes hands with Pope Francis during a welcoming ceremony at the White House in Washington September 23,2015. REUTERS / Tony Gentile[/ caption][caption id = " attachment _ 41409 " align = " aligncenter " width = " 976 "]A Syrian migrant woman plays with her baby as she waits inside a vehicle to be allowed to continue their journey to Europe outside the Sarayici oil wrestling arena in Edirne, Turkey September 23,2015. European Union leaders could promise billions of euros in new funding for Syrian refugees at an emergency summit on Wednesday where they will also try to patch up bitter divisions over the migration crisis. REUTERS / Yagiz Karahan[/ caption][caption id = " attachment _ 41410 " align = " aligncenter " width = " 976 "]Muslim pilgrims pray on Mount Mercy on the plains of Arafat during the annual haj pilgrimage, outside the holy city of Mecca September 23,2015. REUTERS / Ahmad Masood[/ caption][caption id = " attachment _ 41411 " align = " aligncenter " width = " 976 "]Migrants wait to board buses on a field near the village of Babska, Croatia September 23,2015. European Union leaders could promise billions of euros in new funding for Syrian refugees at an emergency summit where they will also try to patch up bitter divisions over the migration crisis. REUTERS / Marko Djurica[/ caption][caption id = " attachment _ 41412 " align = " aligncenter " width = " 976 "]President Barack Obama stands with Pope Francis during an arrival ceremony for the pope at the White House in Washington September 23,2015. The pontiff is on his first visit to the United States. REUTERS / Jonathan Ernst[/ caption][caption id = " attachment _ 41413 " align = " aligncenter " width = " 976 "]A man, with his face injured, lies bleeding on the ground after being attacked on suspicion of snatching a mobile phone from a motorist shortly after a rally at Uhuru Park by opposition supporters in a show of solidarity with teachers currently engaged in a national striker over a pay increase dispute in capital Nairobi September 23,2015. REUTERS / Noor Khamis[/ caption][caption id = " attachment _ 41414 " align = " aligncenter " width = " 976 "]President Barack Obama sits with Pope Francis in the Oval Office as the pontiff is welcomed to the White House during a ceremony in Washington September 23,2015. REUTERS / Tony Gentile[/ caption]Recommended:Son of tripped Syrian refugee accompanies Ronaldo[Photos][caption id = " attachment _ 41415 " align = " aligncenter " width = " 975 "]A Syrian refugee carries his baby off an overcrowded dinghy after crossing part of the Aegean Sea from Turkey to the Greek island of Lesbos September 23,2015. REUTERS / Yannis Behrakis[/ caption][caption id = " attachment _ 41416 " align = " aligncenter " width = " 976 "]Pope Francis is touched by a nun as he arrives in the Basilica of the National Shrine of the Immaculate Conception for a Canonization Mass for Friar Junipero Serra in Washington September 23,2015. REUTERS / Kevin Lamarque[/ caption][caption id = " attachment _ 41417 " align = " aligncenter " width = " 976 "]A group of Sudanese and Eritrean migrants are seen in silhouette near a rock with white hand prints on the seawall at the Saint Ludovic border crossing on the Mediterranean Sea between Vintimiglia, Italy and Menton, France, September 23,2015. European Union leaders meet in Brussels at an emergency summit on Wednesday to patch up bitter divisions over the migration crisis. REUTERS / Eric Gaillard[/ caption][caption id = " attachment _ 41418 " align = " aligncenter " width = " 976 "]People crowd on top of a train entering the Dhaka airport rail station September 24,2015, as thousands of Bangladeshi Muslims head home to celebrate Eid - al - Adha. Muslims across the world are celebrating the annual festival of Eid al - Adha also known as the Feast of the Sacrifice. REUTERS / Ashikur Rahman[/ caption][caption id = " attachment _ 41419 " align = " aligncenter " width = " 976 "]Migrants carry an elderly woman as they walk on a field, after they crossed the border with Serbia, near Tovarnik, Croatia September 24,2015. European Union leaders could promise billions of euros in new funding for Syrian refugees at an emergency summit where they will also try to patch up bitter divisions over the migration crisis. REUTERS / Marko Djurica[/ caption][caption id = " attachment _ 41420 " align = " aligncenter " width = " 976 "] A migrant walks through a field towards the Hungarian border after arriving at the train station in Botovo, Croatia September 23, 2015. Hungarian leader Viktor Orban said on Wednesday he would propose that European Union states pay more into the EU budget to help cope with the refugee crisis and that Greece should allow other countries to defend its borders to slow the influx. REUTERS/Antonio Bronic[/caption]