Italian fascism is the original fascist ideology as developed in Italy by Giovanni Gentile and Benito Mussolini. The ideology is associated with a series of two political parties led by Benito Mussolini: the National Fascist Party (PNF), which ruled the Kingdom of Italy from 1922 until 1943, and the Republican Fascist Party that ruled the Italian Social Republic from 1943 to 1945. Italian fascism is also associated with the post-war Italian Social Movement and subsequent Italian neo-fascist movements.