Material showing Lancasters dropping bombs.
Shots of bombs dropping from bombers on raid over enemy territory.
US Army planes in training - dropping bombs on ground targets at Aberdeen, Maryland.
American troops land on Pacific island, good shots of bombs being dropped from planes.
Bomb aimers are trained to drop their "eggs" to score direct hits on a model of Tokyo in Texas.
Royal Air Force planes drop bombs on Brunswick, Germany.
RAF planes on show and in action.
Good shots of bombing raid over enemy territory.
Documentary tracing the role of the Royal Air Force in wartime.
USAAF and RAF bombing raids on Germany and France.