![An activist wears a gas mask in the eastern suburbs of Damascus, where Syrian government forces have allegedly used chemical weapons, August 22, 2013. © 2013 REUTERS/Bassam Khabieh](/sites/default/files/multimedia_images_2018/201806un_syria_cwc.jpg)
An activist wears a gas mask in the eastern suburbs of Damascus, where Syrian government forces have allegedly used chemical weapons, August 22, 2013.
© 2013 REUTERS/Bassam Khabieh
An activist wears a gas mask in the eastern suburbs of Damascus, where Syrian government forces have allegedly used chemical weapons, August 22, 2013.