Soldiers of the 10th Middlesex Regiment in training, walking along trenches.
10th Middlesex Regiment (Training). Part 1.
Location of events unknown.
Soldiers walking through trenches, carrying rifles and ammunition (?). Officers stand on the top banks of the trenches, presumably giving orders or instructions. M/S of a soldier or officer fiddling with a hand grenade or very small bomb. He lights the end on a little pad on his wrist and throws it over the top.