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ABU DHABI, UAE - DECEMBER 01: President of Egypt Abdel Fattah el-Sisi (L) meets Crown Prince of Abu Dhabi Mohammed bin Zayed Al Nahyan (R) in Abu Dhabi, United Arab Emirates on December 01, 2016. (Photo by Egyptian Presidency - Handout/Anadolu Agency/Getty Images)

ABU DHABI, UAE - DECEMBER 01: President of Egypt Abdel Fattah el-Sisi (L) meets Crown Prince of Abu Dhabi Mohammed bin Zayed Al Nahyan (R) in Abu Dhabi, United Arab Emirates on December 01, 2016.

 (Photo by Egyptian Presidency - Handout/Anadolu Agency/Getty Images)