But when this poster was first produced in 1939, it was to quell terror in the face of bombardment. The Battle of Britain was a duel between the Royal Air Force and the Luftwaffe. And while the RAF denied the Nazis total control of British airspace, the Nazis were still able to bomb Great Britain over and over again in what's known as the Blitz. Stan, no, no jokes this time. Yes, the Blitz. Meanwhile, Europeans were also fighting each other in North Africa. The Desert Campaign started in 1940 and lasted through 1942.