Our hooman's Great-Uncle, Eugene, was drafted (lists of new draftees were published in local newspapers) to the Great War/WWI.
This pic is: "A gunner with the regimental cat in a trench. Cambrin, France. 2/6/1918 (1WM)" Per an article on 8/22/2014 by Bruce Strauss: "Cats were a common sight in the trenches & aboard ships where they hunted mice & rats.