 They were led by Mulele, Gaston Soumialot and Christophe Gbenye, former members of Antoine Gizenga's Parti Solidaire Africain (PSA).During the Simba rebellion, Mulele, who had previously undergone training in the Eastern Bloc as well as China, led a Maoist faction in the Kwilu Province.This came to be known as the Kwilu Rebellion.