Syrian refugees arrive on the shores of the Greek island of Lesbos after crossing the Aegean Sea from Turkey on a inflatable dinghy on September 11, 2015. The EU unveiled plans to take 160,000 refugees from overstretched border states, as the United States said it would accept more Syrians to ease the pressure from the worst migration crisis since World War II.  / AFP / ANGELOS TZORTZINIS        (Photo credit should read ANGELOS TZORTZINIS/AFP/Getty Images)