Complex sentence: Malaparte fought in World War I, earning a captaincy in the Fifth Alpine Regiment and several decorations for valor, and in 1922 took part in Benito Mussolini's March on Rome.
Split into simpler sentences: Malaparte fought in World War I, earning a captaincy in the Fifth Alpine Regiment and several decorations for valor. In 1922 he took part in Benito Mussolini's March on Rome.