 While conservative forces tried to roll back some of the social advances of the 1960s, and part of the military indulged in "sabre rattling" in order to intimidate progressive political forces, numerous left-wing activists became increasingly frustrated at social inequalities, while the myth of guerrilla (Che Guevara, the Uruguayan Tupamaros) and of the Chinese Maoist "cultural revolution" increasingly inspired extreme left-wing violent movements.Social protests, in which the student movement was particularly active, shook Italy during the 1969 "autunno caldo" (Hot Autumn), leading to the occupation of the Fiat factory in Turin.In March 1968, clashes occurred at La Sapienza university in Rome, during the "Battle of Valle Giulia."