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ALEPPO, SYRIA - DECEMBER 22: A convoy, evacuating civilians and opposition group members who left east Aleppo that had been under siege by Assad regime and its supporter foreign terrorists, arrive in opposition controlled Rashideen Town of Aleppo, Syria on December 22, 2016. (Photo by Beha el Halebi/Anadolu Agency/Getty Images)

ALEPPO, SYRIA - DECEMBER 22: A convoy, evacuating civilians and opposition group members who left east Aleppo that had been under siege by Assad regime and its supporter foreign terrorists, arrive in opposition controlled Rashideen Town of Aleppo, Syria on December 22, 2016. (Photo by Beha el Halebi/Anadolu Agency/Getty Images)

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ALEPPO, SYRIA - DECEMBER 22: A convoy, evacuating civilians and opposition group members who left east Aleppo that had been under siege by Assad regime and its supporter foreign terrorists, arrive in opposition controlled Rashideen Town of Aleppo, Syria on December 22, 2016. (Photo by Beha el Halebi/Anadolu Agency/Getty Images)

ALEPPO, SYRIA - DECEMBER 22: A convoy, evacuating civilians and opposition group members who left east Aleppo that had been under siege by Assad regime and its supporter foreign terrorists, arrive in opposition controlled Rashideen Town of Aleppo, Syria on December 22, 2016. (Photo by Beha el Halebi/Anadolu Agency/Getty Images)

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ALEPPO, SYRIA - DECEMBER 22: A convoy, evacuating civilians and opposition group members who left east Aleppo that had been under siege by Assad regime and its supporter foreign terrorists, arrive in opposition controlled Rashideen Town of Aleppo, Syria on December 22, 2016 . (Photo by Ahmed Al Ahmed /Anadolu Agency/Getty Images)

ALEPPO, SYRIA - DECEMBER 22: A convoy, evacuating civilians and opposition group members who left east Aleppo that had been under siege by Assad regime and its supporter foreign terrorists, arrive in opposition controlled Rashideen Town of Aleppo, Syria on December 22, 2016 . (Photo by Ahmed Al Ahmed /Anadolu Agency/Getty Images)

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ALEPPO, SYRIA - DECEMBER 22: A convoy, evacuating civilians and opposition group members who left east Aleppo that had been under siege by Assad regime and its supporter foreign terrorists, arrive in opposition controlled Rashideen Town of Aleppo, Syria on December 22, 2016 . (Photo by Ahmed Al Ahmed /Anadolu Agency/Getty Images)

ALEPPO, SYRIA - DECEMBER 22: A convoy, evacuating civilians and opposition group members who left east Aleppo that had been under siege by Assad regime and its supporter foreign terrorists, arrive in opposition controlled Rashideen Town of Aleppo, Syria on December 22, 2016 . (Photo by Ahmed Al Ahmed /Anadolu Agency/Getty Images)

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ALEPPO, SYRIA - DECEMBER 22: A convoy, evacuating civilians and opposition group members who left east Aleppo that had been under siege by Assad regime and its supporter foreign terrorists, arrive in opposition controlled Rashideen Town of Aleppo, Syria on December 22, 2016. (Photo by Beha el Halebi/Anadolu Agency/Getty Images)

ALEPPO, SYRIA - DECEMBER 22: A convoy, evacuating civilians and opposition group members who left east Aleppo that had been under siege by Assad regime and its supporter foreign terrorists, arrive in opposition controlled Rashideen Town of Aleppo, Syria on December 22, 2016. (Photo by Beha el Halebi/Anadolu Agency/Getty Images)