The relationship between the NATO alliance and the USSR during the Cold War was full of tensions and tense relations where the world population was trembled because of the possible conflict between the United States and Russia, where once again the world would be in the war. The establishment of the Warsaw Pact divided Europe into two parts: the Western and Eastern bloc, the capitalist and socialist block, who had different means of using dissimilar political attitudes to achieve economic advantage and establish social satisfaction. The key role of the Alliance throughout this time remains to ensure the defence of all member states and the strength to secure all of the Euro-Atlantic area. With the collapse of the USSR and the end of the Cold War, the relationship between the two sides begins with mutual trust and the strengthening of the alliances through joint negotiations and cooperation. With the spreading of the NATO alliance, Russian Federation feels the threat of its sovereignty and the endangerment of all its citizens, therefore, the implementation of their own political beliefs creates an image of itself as a country with great world power. The turning point in relations between the NATO alliance and Russia is considered the Russian Georgian war and as undoubtedly the biggest threat to world peace today is mentioned the Ukrainian crisis. Tensions that have been created by the crisis in Ukraine have moved to the north, specifically in the area of the Baltic, resulting in fear of a possible repetition of the scenario in this area. Therefore, mobilization of NATO troops focuses on the area of the Baltic to show the readiness and cooperation of all its members.