Mohammed al-Haj, a 26-year-old from Aleppo, was one of more than 600,000 migrants and refugees who flowed into Europe so far this year. Seen here on Sept. 10, 2015, Mohammed al-Haj travels by bus to the Macedonian border. (AP Photo/Santi Palacios)
Mohammed al-Haj, a 26-year-old from Aleppo, was one of more than 600,000 migrants and refugees who flowed into Europe so far this year. Seen here on Sept. 10, 2015, Mohammed al-Haj travels by bus to the Macedonian border. (AP Photo/Santi Palacios)
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