Bataille of England, fight that opposed the British airforce (RAF) and the German airforce (Luftwaffe), during the Second World war, and that were translated by the first Nazi defeat since the beginning of the conflict in 1939. The battle of England put in failure plans of Hitler Adolf that were to invade Britain. Her symbolizes the resistance of United Kingdom, then alone in the fight against the Nazi Germany. After the defeat of France in June 1940, United Kingdom, had rejected with contempt all tentatives of negotiations proposed by the Führer, and, in case of attack, his/her/its aviation became again more essential that his/her/its marine. Hitler, against the opinion of his/her/its admirals, decided, in July 1940, to invade the archipelago!; the landing - See-Löwe operation («!Otarie!») - was programmed for September 15. Germany had to to ascertain the restraint of the aerial space, only means to prepare the invasion. In the struggle that followed, the report was by force very disproportionate : the Luftwaffe of Göring, whose operations were led in big left since the Belgian and French airfields, counted 2 670 some planes, of which 1 015 bombardiers (Junker, Dornier and Heinkel), 350 bombardiers Stukas, 930 hunters and 375 hunter-bombardiers (Focke-Wulf and Messerschmitt). Facing this enormous potential, the general Dowding could only align 650 planes of the RAF (Spitfire and Hurricane), distribute in 52 squadrons. Yet, even though their strengths were six less powerful times that those of Germans, British benefitted a certain number of advantages who was going to prove to be crucial with the progression of the evolution of the battle. First, the British hunters were faster and more manageable. Then, British had constructed, just before that the war doesn't explode, a chain of station-radar foreseen to provide a precocious alert that permitted them to measure strength and the progression of the hostile formations in approach, and to send hunt to their meeting. Radars also allowed British not to send of systematic patrols, what permitted to achieve some vital savings, while vaporizing and in men. Otherwise, British fought close to their bases whereas the German planes were given back vulnerable by their court radius of action, that required reorders frequent while vaporizing. Finally, a British pilot ejected in flight of his/her/its device and no injured above of United Kingdom, could take fights in some hours, while a German pilot in the even situation was lost definitely. The first phase of the battle took place in July and August 1940!; Germans, preparing their then, future landing, bombarded ships, harbors, lands, of aviation, the aeronautic factories and the station-radar. The resistance British transformed the fight in war of usury!; the RAF was put to badly, she/it lost more of the half of his/her/its planes and a quarter of his/her/its pilots!; Germany was near to succeed when his/her/its headquarters decided one new strategy. End August, Churchill, to answer to a bombardment, accidental of London, had ordered raids on the industrial sites in Germany (Berlin, Essen, Düsseldorf). Hitler and Görings decided then to enter into a process of massive bombardments of cities English to undermine the state of mind of the population, to disorganize the economy, and to destabilize the government that should bend. Of September 7 at 5 October, of raids of a violence then unknown fell on England, but Hitler's objectives was not reached!; England seemed galvanized by tests and the German losses proved to be strong heavy. September 17, Hitler had decided to postpone the operation Sea lion as a consequence of destructions that the united fleet in the French harbors and Belgian had undergone the fact of actions of the RAF. From October 1940, thanks to a new process of radionavigation, Germany privileged the nocturnal attacks in order to reduce his/her/its losses. Lasting of months, the, English underwent the Blitz, raids of real armadas of 200 to 300 planes that dropped every night, except if the weather report forbade flights, of the exploding or incendiary bomb tons!; Coventry, November 15, is reduced in ashes!; there were 45 000 deaths and 51 000 injured, but United Kingdom resisted. Hitler had failed!; the massive bombardments became less frequent after May 1941, where London knew the most destructive attacks.