 Through the 1920s, the Kingdom of Spain mounted military campaigns to subdue the indigenous Fang people in Río Muni; by 1926, garrisons of the Colonial Guard were established throughout the enclave, and the whole colony was considered 'pacified' by 1929.At the outbreak of the Spanish coup of July 1936 and the commencement of the Spanish Civil War, the commander of the Colonial Guard, Lieutenant colonel Luis Serrano Maranges, revolted against the Second Spanish Republic and joined the Nationalist faction.His revolt meant that all of Spanish Guinea would end up joining the Nationalist faction in the subsequent .