A detailed and witty examination of 20 real inventions from WWII that never saw the light of day. Each entry includes full technical details, a complete development history, in-depth analysis, one or more illustrations and an acerbic fictionalised account of the invention's success or failure on the battlefield. These are the strangest inventions of WWII - from a 1000 ton tank to an aircraft carrier made out of ice - and for many of them, the original illustrations within are the only surviving images of the inspired lunacy they represent.