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In page Refugee crisis:

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There are three Mediterranean refugee routes: Eastern, Central and Western route.[citation needed] Since 2015 more than 700.000 refugees and other migrants used these routes (i.e. the Eastern Balkan route and the Western Balkan route) from Greece through the Balkan to enter central European countries. Since March 2016 the Eastern route is almost closed, but the Western route is still busy.[citation needed]