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FILE - In this early Saturday, May 5, 2018 file photo the moon rises above a huge pile of discarded life vests and dinghies used by migrants and refugees crossing from the nearby Turkish coast, at a dump on the island of Lesbos. More than a million refugees and migrants traveled to the Greek islands and onto Europe during the 2015-16 refugee crisis. Arrival numbers have again swelled in recent weeks. (AP Photo/Petros Giannakouris, File)