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HORGOS, SERBIA - SEPTEMBER 17: A migrant child wakes up to a more peaceful morning after the previous day's friction at the border crossings on September 17, 2015 in Horgos, Serbia. Calm has now fallen over the Horgos border crossing between Serbia and Hungary after yesterday's clashes with Hungarian police. Overnight hundreds of migrants have been transported by bus to Croatia. Migrants are now diverting to Croatia from Serbia two days after Hungary sealed its border with Serbia, the majority of them want to reach Germany, amid divisions within the European Union over how to manage the ongoing crisis.(Photo by Srdjan Stevanovic/Getty Images)

HORGOS, SERBIA - SEPTEMBER 17: A migrant child wakes up to a more peaceful morning after the previous day's friction at the border crossings on September 17, 2015 in Horgos, Serbia. Calm has now fallen over the Horgos border crossing between Serbia and Hungary after yesterday's clashes with Hungarian police. Overnight hundreds of migrants have been transported by bus to Croatia. Migrants are now diverting to Croatia from Serbia two days after Hungary sealed its border with Serbia, the majority of them want to reach Germany, amid divisions within the European Union over how to manage the ongoing crisis.(Photo by Srdjan Stevanovic/Getty Images)