During the 20 months since the beginning of the Second World War, German troops occupied all the small states of North-Western Europe, captured the Balkans, Poland, Czechoslovakia, Belgium, the Netherlands, Denmark, Norway, Bulgaria, Albania, Yugoslavia, and took Hungary, Romania and Finland under their sphere of influence. , forced France to surrender. Economic, territorial, human, etc. of all these countries. resources were in the hands of the German military machine. In 1941, the USSR and England were already waiting for German attacks. Although the United States was protected by oceans and distance from the German threat, it was nevertheless deeply alarmed by Hitler's short-term success. All the progressive humanity, the peoples of the world facing the threat of Hitlerism, stood together to get rid of this scourge of the 20th century. The determination to fight against fascism soon overcame all class and ideological barriers and led to the creation of an anti-fascist coalition and the organization of a joint struggle against the German-Italian-Japanese occupation. Although the main goal during the war was to liberate Europe and the world from the German invaders and their allies, the post-war interstate relations and relations, the restoration of norms of civil coexistence and the creation of a collective security system became the main topic of discussion in the international community. Of course, everything depended on the position of the USSR, England and the United States, which were at the forefront of the fight against Germany, and the relations between them. Keywords: World Second War, Tripolar International Relations, Coalision blocks.