Another from the French stereo-cards series, this shows a Poilu in a smashed position on the Western Front using a Chauchat machine-gun in an anti-aircraft role. The strafing of trenches by aircraft was a rare occasion in the Great War and this is no doubt posed. In fact there is very little this soldier could do even if an aircraft appeared as he has failed to load a magazine into the gun!
The Chauchat was a very cheaply made and produced light machine-gun used by the French Army from 1915 and was brought in to give French platoons some automatic fire capability. However the weapon would easily jam if it got muddy and had a poor reputation; made worse when it was issued to American troops in 1917/18. By the end of the war more than 250,000 had been produced.