Abstract
The aim of this essay is to understand and analyze the features of political instability which occurred throughout the 20th century, in France, Germany, and Italy. This objective can be fulfilled by analyzing the works of Almond and Sartori. Almond's work tries to classify the different systems of government into four main types, with regard to their political role structure and their political culture. The other theory, defined by Sartori, deals with the party systems and is mainly focused on plurality and on the ability of parties to form coalitions or to influence other parties. Obviously, the political instability experienced in France is not the same as the one experienced in Germany or in Italy, but most of the causes of this instability have the same causes.
