With the fall of France, Hitler\'s attention turned to Britain. The invasion and conquest of these islands was essential. Only with Western Europe totally in Nzi hands could the push eastward to Russia go ahead. Thus Operation Sea Lion... This lively and objective study, based on German and British sources, examines the military and strategic blunders which led to the postponement of the assaut. \"We are fighting by ourselves alone\" said Churchill, \"but we are not fighting for ourselves alone\". This outstanding account reconstructs the military imperatives of those crucial months alongside the drama of everyday life in britain, as Hitler\'s one remaining enemy stood at bay.