Complex sentence: During the German occupation of Italy, he was an active member in Resistance Movement he was one of the leaders of a student group of anti fascist activists that included, Carlo Lizzani,, and other important figures in the development of post war Italy.
Split into simpler sentences: During the German occupation of Italy, he was an active member in Resistance Movement. He was one of the leaders of a student group of anti-fascist activists that included Carlo Lizzani,,, and other important figures in the development of post-war Italy.