New arms demonstrations (00/11/1952): shot of sign "Valcartier". HAS of Valcartier camp. Shots of group of officers from various countries examining damage done to plate steel by shell, of Brigadier JM Rockingham talking with Major General FRC Matthews, from UK (on left) and Major General RN Young, US Army, CU of Major Young, Brigadier Rockingham and Major Matthews. Various shots of officers watching, of smoke on target area, mortars being fired, flamethrowers in action at night.