Angola's colonial era ended with the Angolan War of Independence against Portugal occurred between 1970 and 1975. Independence did not produce a unified Angola, however; the country plunged into years of civil war between the National Union for the Total Independence of Angola (UNITA) and the governing Popular Movement for the Liberation of Angola (MPLA). 30 years of war would produce historical legacies that combine to allow for the persistence of a highly corrupt government system.