Just inside the Hungarian border, a Syrian man named Mohamed stood on the railroad tracks he had followed from Serbia. His white sweater was dirty and worn, and his face haggard. As hundreds of people trudged past him into Hungary, he looked warily at the police awaiting them.
He, his father and his cousins hoped to make it to Northern Europe. They knew that, under European Union rules, if they walked into the camp set up by border police, they probably would have to lodge their asylum claims in Hungary instead.