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TOPSHOT - Syrian girls walk in the rain and they return from school in the southwestern city of Daraa on March 28, 2016. Since an unprecedented "cessation of hostilities" came into force on February 27, 2016, the bombardement of the city of Daraa came to a halt and Syrian children in the city have been able to return to school. / AFP / FADI DIRANI (Photo credit should read FADI DIRANI/AFP/Getty Images)

TOPSHOT - Syrian girls walk in the rain and they return from school in the southwestern city of Daraa on March 28, 2016.   
Since an unprecedented "cessation of hostilities" came into force on February 27, 2016, the bombardement of the city of Daraa came to a halt and Syrian children in the city have been able to return to school. / AFP / FADI DIRANI        (Photo credit should read FADI DIRANI/AFP/Getty Images)