In pictures: Europe's migrant crisis
Europe's Migrant Crisis - Sept. 19, 2015

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A medium-range ballistic missile target is launched from the Pacific Missile Range Facility in Kauai, Hawaii, during Flight Test Standard Missile-27, Event 2. The target was successfully intercepted by SM-6 missiles fired from the guided-missile destroyer destroyer USS John Paul Jones.

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A girl hugs a teddy bear on the arrival at a transit camp near the southern Macedonian town of Gevgelija, after crossing the border with Greece.

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Migrants and refugees walk around tents as they wait after Turkish police forces block them on a highway near Edirn during their march to the border between Turkey and Greece.

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Migrants in a dinghy paddle their craft after leaving Bodrum, Turkey, in the hopes of crossing the Mediterrean Sea to reach the Greek Island of Kos. Of the record total of 432,761 refugees and migrants making the perilous journey across the Mediterranean to Europe so far this year, an estimated 309,000 people had arrived by sea in Greece.