"Volunteers remove a dead body from under debris after shelling in Aleppo on August 29, 2014. According to the Syrian Civil Defense, barrel bombs are now the greatest killer of civilians in many parts of Syria. <a href=""http://www.cnn.com/2015/05/21/health/white-helmets-profile/index.html"" target=""_blank"">The White Helmets</a> are a humanitarian organization that tries to save lives and offer relief."
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