 Thus, the Spanish effectively pacified nearly all of the Tausug and Samal settlements along Basilan's western coasts.By then, only the largely Yakan areas of Lamitan and the interior remained outside of Spanish control.As the situation in the island's western half started to normalize, Christians and Tausugs likewise started a long-lasting socio-political and economic alliance, which when used against the Yakans, proved to be effective in advancing each other's interests for the next century.