A general view shows the dammage at the Omar bin Abdaziz hospital in the Maadi district of the northern Syrian city of Aleppo after a barrel bomb struck just outside during government air raids on rebel-held districts of the city on July 16, 2016.  Air raids on rebel-held districts of Syria's battleground second city of Aleppo killed at least 21 civilians including children, the Syrian Observatory for Human Rights said.
iThaer Mohammed/AFP/Getty

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