1990s in Angola government, UNITA, and the UN with the governments of Portugal, the United States, and Russia observing, to oversee its implementation. Violations of the protocol's provisions would be discussed and reviewed by the commission. The protocol's provisions, integrating UNITA into the military, a ceasefire, and a coalition government, were similar to those of the Alvor Agreement which granted Angola independence from Portugal in 1975. Many of the same environmental problems, mutual distrust between UNITA and the MPLA, loose international oversight, the importation of foreign arms, and an overemphasis on maintaining the balance of power, led to the protocol's collapse. In January
Angola–Soviet Union relations United States, the People's Republic of China and the Mobutu government in Zaïre. The United States, South Africa, and several other African nations also supported Jonas Savimbi's National Union for the Total Independence of Angola (UNITA), whose ethnic and regional base lies in the Ovimbundu heartland of central Angola. The government of the Soviet Union, well aware of South African activity in southern Angola, flew Cuban soldiers into Luanda one week before November 11, 1975, the date on which Angolan nationalists had agreed to declare independence. While Cuban officers led the mission and provided the bulk of the troop force,