 In the 1920s, Cesare Mori was sent to Sicily by Benito Mussolini to combat the Mafia, although Mori's crude method of imprisoning thousands of men - many of them innocent - without trial meant the Mafia were able to swiftly reestablish themselves as before once Mori had departed.In the late 1950s, there was an increase in violence around the town of Corleone as rival factions in the local Mafia clan, the group around Michele Navarra and the Corleonesi, battled it out.More significantly there were a wave of murders and car bombings in and around Palermo in the First Mafia War that started in 1962.