The territory of Cabinda is north of Angola proper, separated by a strip of territory long in the Democratic Republic of the Congo. The Portuguese Constitution of 1933 designated Angola and Cabinda as overseas provinces. In the course of administrative reforms during the 1930s to 1950s, Angola was divided into districts, and Cabinda became one of the districts of Angola. The Front for the Liberation of the Enclave of Cabinda (FLEC) formed in 1963 during the broader war for independence from Portugal. Contrary to the organization's name, Cabinda is an exclave, not an enclave. FLEC later split into the Armed Forces of Cabinda (FLEC-FAC) and FLEC-Renovada (FLEC-R). Several other, smaller FLEC factions later broke away from these movements, but FLEC-R remained the most prominent because of its size and its tactics. FLEC-R members cut off the ears and noses of government officials and their supporters, similar to the Revolutionary United Front of Sierra Leone in the 1990s. Despite Cabinda's relatively small size, foreign powers and the nationalist movements coveted the territory for its vast reserves of petroleum, the principal export of Angola then and now.