HARMICA, CROATIA - SEPTEMBER 19: Migrants are held back by Slovenian riot police in the small Croatian village of Harmica on September 19, 2015 in Harmica, Croatia. Last night police had to use pepper spray to hold back migrants at the small border crossing, Today they are allowing small groups to cross and are being bussed to a registration centre in Slovenia. Thousands of migrants are trying back roads and tracks through villages to gain access to Slovenia and the EU since Hungary fenced off its border with Serbia earlier this week. (Photo by Christopher Furlong/Getty Images)
