Armadillo Mk III self-propelled gunWith the Fall of France in July 1940, Hitlers Germany threatened to invade Britain in the planned Operation Sea Lion, and so the British Government needed a solution to bolster the defence of airfields against airborne troops. An ideal solution would have been to make use of tanks and armoured cars, had most of the British heavy equipment not been abandoned during the Dunkirk evacuation. Any solution would need to be one that did not compete for