MUNICH, GERMANY - SEPTEMBER 01:  Police detain migrants who had arrived at Munich Hauptbahnhof main railway station and who had no passports or valid visas on September 1, 2015 in Munich, Germany. Over a thousand migrants arrived in southern Germany by train in the last 24 hours, many of them who boarded trains in Budapest. According to police hundreds of migrants are arriving in southern Germany daily, either via people smugglers from Hungary along the A3 highway or via trains coming from Italy. Germany is expecting to receive 800,000 asylum-seeking migrants this year and is struggling to cope with the record number.  (Photo by Lennart Preiss/Getty Images)