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NEW YORK, NY - SEPTEMBER 28: Egyptian President Abdel Fattah al-Sisi addresses the United Nations General Assembly on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders. (Photo by Spencer Platt/Getty Images)

NEW YORK, NY - SEPTEMBER 28:  Egyptian President Abdel Fattah al-Sisi addresses the United Nations General Assembly on September 28, 2015 in New York City. The ongoing war in Syria and the refugee crisis it has spawned are playing a backdrop to this years 70th annual General Assembly meeting of global leaders.  (Photo by Spencer Platt/Getty Images)