A forest in the United States. Aerial view of the forest. A man seated in a Ford car drives it across fields and in the forest along a dirt road. A forest fire (possibly intentionally set to clear an area). Smoke columns rise. Cables placed around a stump and another tree and the stump and tree are pulled out of the ground. Lumber workmen cut off the roots of trees.
From a United States Army training film titled 'Snappy Shots of Chemical Warfare' showing scenes of Chemical Warfare Service training. A portable toxic cylinder is placed on the ground. Smoke is let out from portable cylinders. Smoke surrounds the area.
A United States Army chemical warfare service training exercise underway. A United States soldier fires a McBride gas gun. Smoke candles burn in a field with smoke surrounding the area.
A United States Army training film about chemical warfare service training. United States soldiers throw gas hand grenades (containing non-poisonous smoke) during a training exercise. Smoke rises in the grenade target area.
A United States Army training film about the chemical warfare service. White phosphorous hand grenades and rifle grenades used by soldiers during a training operation. United States soldiers throw white phosphorous hand grenades. Smoke rises in the surrounding area with explosions.
From a United States Army training film describing techniques of the chemical warfare service. United States troops advance behind successive smokescreens made with phosphorous hand grenades. An explosion with smoke rising in the surrounding area.