Migrant crisis: Explaining the exodus from the Balkans (BBC)
Since Macedonia declared a state of emergency in its border areas at the end of August, the "Balkan Route" has become notorious. Up to 3,000 refugees, mainly from countries in the Middle East, arrive in the small south-east European country each day. A similar number cross borders into Serbia and Hungary - most of them ultimately hoping to reach Germany.
http://www.bbc.com/news/world-europe-34173252