Syrian refugees arrive aboard a dinghy after crossing from Turkey to the island of Lesbos, Greece, on Sunday, Sept. 20, 2015. The migrant crisis is challenging leaders in Europe and the United States.
Syrian refugees arrive aboard a dinghy after crossing from Turkey to the island of Lesbos, Greece, on Sunday, Sept. 20, 2015. The migrant crisis is challenging leaders in Europe and the United States. Petros Giannakouris The Associated Press
Syrian refugees arrive aboard a dinghy after crossing from Turkey to the island of Lesbos, Greece, on Sunday, Sept. 20, 2015. The migrant crisis is challenging leaders in Europe and the United States. Petros Giannakouris The Associated Press