him, Salazar consolidated power and immediately sent reinforcements to the overseas territories, setting the stage for continued conflict in Angola. Similar situations played out in other overseas Portuguese territories. Multiethnic societies, competing ideologies, and armed conflict in Portuguese Africa By the 1950s, the European mainland Portuguese territory was inhabited by a society that was poorer and had a much higher illiteracy rate than the average Western European societies or those of North America. It was ruled by an authoritarian and conservative right-leaning dictatorship, known as the Estado Novo regime. By this time, the Estado Novo regime ruled both the Portuguese mainland and several centuries-old overseas territories as theoretically co-equal departments. The possessions were Angola, Cape Verde, Macau, Mozambique, Portuguese Guinea, Portuguese India, Portuguese Timor, São João Baptista de Ajudá, and São Tomé and Príncipe. In reality, the relation of mainland Portuguese to their overseas possessions was that of colonial administrator to a subservient colony. Political, legislative, administrative, commercial, and other institutional relations between the colonies and Portugal-based individuals and organizations were numerous, though migration to, from, and between Portugal and its overseas departments was limited in size, due principally to the long distance and low annual income of the average Portuguese and that of the indigenous overseas populations. An increasing number of African anticolonial movements called for total independence of the overseas African territories from Portugal. Some, like the U.S.-backed UPA wanted national self-determination, while others wanted a new form of government based on Marxist principles. Portuguese leaders, including Salazar, attempted to stave off calls for independence by defending a policy of assimilation, multiracialism, and civilising mission, or lusotropicalism, as a way of integrating Portuguese colonies, and their peoples, more closely with Portugal itself. For the Portuguese ruling regime, the overseas empire was a matter of national interest, to be preserved at all costs. As far back as 1919, a Portuguese delegate to the International Labour Conference in Geneva declared: "The assimilation of the so-called inferior races, by cross-breeding, by means of the Christian religion, by the mixing of the most widely divergent elements; freedom of access to the highest offices of state, even in Europe – these are the principles which have always guided Portuguese colonisation in Asia, in Africa, in the Pacific, and previously in America." As late as the 1950s, the policy of "colorblind" access and mixing of races did not extend to all of Portugal's African