Faces of the migrant crisis: Mohammad Zatareyh
In September, Mohammad Zatareyh and thousands of others were corralled in Keleti train station in Budapest when Hungary cracked down on migrants to stop them travelling through the country.
The 26-year-old Syrian persuaded hundreds of people to leave the station with him to walk the 180km (110 miles) to Austria.
He is now living in Germany. Here, he tells Newsnight's Katie Razzall his story.