Abstract
In the first half of the XX century many countries were led by the authoritarian leaders with the extreme ideologies. The ideologies such as Nazism, fascism and communism contributed to the creation of the very powerful states with strong economies, but no respect of the minorities, some classes of people or countries. As the result, all of the countries with the extreme ideologies participated in the World War II and only the USSR was able to become a victor. The main purpose of this paper is to show why extreme ideologies became popular in some countries. By means of ...
