Fanon has had an influence on anti-colonial and national liberation movements. In particular, "Les damnés de la terre" was a major influence on the work of revolutionary leaders such as Ali Shariati in Iran, Steve Biko in South Africa, Malcolm X in the United States and Ernesto Che Guevara in Cuba. Of these only Guevara was primarily concerned with Fanon's theories on violence; for Shariati, Biko and also Guevara the main interest in Fanon was "the new man" and "black consciousness" respectively.