Exactly thus, the submarines German still caused damages to the allies until the beginning of 1945. The Battle of the Atlantic brought enormous losses for Brazil, becoming necessary the implantation of sea and air bases in points strategical north-eastern, in Par and the Amap. The place chosen for the construction of an air base in the amapaense territory was an area next to the city to Amap. This work has as objective main to point the importance strategical, but not only also social on the back of of the Air base of Amap, telling the missions of the Brazilian Air Force in set with the North American Air Force the Amap, as well as describing as if it gave the construction of the air base and to identify the reasons that had taken the Brazilian government and the North American government they will construct it an air base in the Amap. In the first chapter, the problematic one of the daily pay-war will be boarded: the trajectory of Adolf Hitler: of painter without success the dictator of Germany; the pretensions of Hitler; the concessions anglian-Frenchmen, with intention to prevent a new war; the beginning of the conflict that, as well as the First War, had beginning in the Europe and dragged nations of other parts of the globe for abyss, becoming it more destructive war of history. Also elapsing of the conflict in the Europe will be explanado: the fast nazista advance on the Poland, Norway, the Denmark, Belgium, Holland and France; the British resistance and the invasion of the Soviet Union. As the chapter will approach the totalitarian government of Getlio Vargas, inspired by the Italian fascism, considered Been New. Although these similarities, the Varguista government and of Benito Mussolini, in Italy, such similarities did not hinder the relations it Brazil with the United States, that gave in climate of diffidence and hostility. .