Three anti-aircraft guns flash in the dark in London, on September 20, 1940, throwing shells at raiding German planes. Shells in stacked rows behind the guns leap about as the concussions from the firing loosen them.
Truck-mounted anti-tank guns, used as highly mobile, hard-hitting artillery units, speed over the desert and attack the enemy from all sorts of unexpected quarters. A mobile anti-tank unit of the Eighth Army in action, somewhere in the desert, Libya, on July 26, 1942.
Ack-Ack Girls, members of the Auxiliary Territorial Service (ATS), run to action at an anti-aircraft gun emplacement in the London area on May 20, 1941 when the alarm is sounded.