The reasons for the Second World War are not hard to plumb. The major driving forces of the Second World War started to show immediately after the end of the First World War. The antagonism between old enemies, which were involved in the First World War, was still very strong. Since the First World War came to an end the credibility gap was growing between such European countries as Germany and France, for instance. Tensions in Europe mounted and little was done to stop the inconsistencies. Furthermore, riding on the wave of deep social problems, populism and economic challenges of the post-war Europe a considerable number of aggressive authoritarian regimes began to come to power across the continent. Fascist or authoritarian regimes were established in Hungary in 1920, Italy in 1922, Bulgaria in 1923, Albania in 1924, Greece in 1925 and Portugal in 1926.1 Fascism and revisionism started penetrating deep in the political structure of Europe, which jeopardized the established pattern of international intercourse and peace between nations. A dangerous trend for revision of the existing national boundaries in the world had been growing in strength within political discourse of such countries as Germany or Italy for many years. After the Nazi party came to power in Germany in 1933 the escalation of revisionism seemed to gain momentum and aggressive revanchist rhetoric became dangerously popular with German society.
Nazi Germany started to systematically violate the most significant provisions of the Treaty of Versailles, which was signed between the warring parties of the First World War in 1919 and put an end to the war. In contempt of the Treaty of Versailles, Nazi Germany started restoring the military forces of the country in 1935. In 1938 Germany annexed Austria, which was the direct violation of the treaty as well and it ceased to exist de facto.2 It must be