 Yakan villages, located in the heavily forested interiors, and situated far beyond any effective direct control by Spanish authorities however, have remained fairly isolated from the rest of the island, with its three main population centers, Isabela, Lamitan and Maluso firmly under Spanish administration.By 1874, with Spanish support and Christianized Yakan warriors under his wing, Lamitan's conquistador - Datu Kalun - commenced offensives which aimed to pacify the Yakans of Basilan's interior.He was initially successful in so far as he was able to reach the previously impregnable Yakan enclaves in Bohelebung, Tipo-Tipo and Tumahubong, Sumisip, eventually establishing a foothold for the Spanish authorities in these otherwise inaccessible territories.