So after knocking out most of Central Europe, the Nazis set their sights on Great Britain. But they didn't invade the island, choosing instead to attack it with massive airstrikes. I mean, you look at this poster and think, man, the Queen wants me to finish my term paper so I can do it. 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.