 Rousseff joined the second group, which became the National Liberation Command ().According to , leader of Colina in 1968 who taught Marxism to Rousseff in high school, she chose armed struggle after reading "Revolution inside the Revolution" by Régis Debray, a French intellectual who had moved to Cuba and become a friend of Fidel Castro and Che Guevara.Heringer says that "the book inflamed everybody, including Dilma".