Troops of the First Division, American Expeditionary Forces (AEF) move down a hill with a horse-drawn caisson and small artillery piece, at their training grounds in Gondrecourt, France, during World War 1. In the next scene two gunners crouch behind the shield of a Vickers Q.F. Mark II 40mm Gun. An instructor stands over them and they fire the gun at his command, several times. The hot expended shells drop between the gunners. The assistant gunner loads a new round through the gun breech, for the next firing. Several other soldiers sit in the background observing and presumably awaiting their turn to practice firing the Vickers gun.
Troops of the First Division, American Expeditionary Forces (AEF) practice setting the elevation of a Stokes mortar, at their training area in Gondrecourt, France, during World War 1. Next, a soldier removes a mortar round from a box. He installs its fuse and screws in its propelling cartridge. He then hands it to another soldier who drops it into a stokes mortar and it fires. A soldier holds up pieces of fractured metal, probably fragments of an exploded mortar bomb.