DAMASCUS, SYRIA - AUGUST 17: Smoke rises in Haresta district of east Ghouta, Damascus after Asad Regime Forces stage an airstrike on August 17, 2015. (Photo by Ammar Al Bushy/Anadolu Agency/Getty Images)
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DAMASCUS, SYRIA - AUGUST 17: Smoke rises in Haresta district of east Ghouta, Damascus after Asad Regime Forces stage an airstrike on August 17, 2015. (Photo by Ammar Al Bushy/Anadolu Agency/Getty Images)
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DAMASCUS, SYRIA - AUGUST 16: Syrians search for survivors after Asad Regime Forces stage an airstrike with vacuum bombs, destroyed houses in Douma region of Damascus, Syria on August 16, 2015. (Photo by Mohammed Badra/Anadolu Agency/Getty Images)
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DAMASCUS, SYRIA - AUGUST 16: Syrians search for survivors after Asad Regime Forces stage an airstrike with vacuum bombs, destroyed houses in Douma region of Damascus, Syria on August 16, 2015. (Photo by Mohammed Badra/Anadolu Agency/Getty Images)
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ALEPPO, SYRIA - APRIL 13: Smoke rises from an opposition-controlled residential area in Aleppo following the airstrikes of Syrian regime forces on April 13, 2015. (Photo by Ahmed Muhamed Ali/Anadolu Agency/Getty Images)
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