basis of the two nations' independence movement. Moving its headquarters to Conakry, Guinea in 1960, the PAIGC began an armed rebellion against Portugal in 1961. Acts of sabotage eventually grew into a war in Portuguese Guinea that pitted 10,000 Soviet bloc-supported PAIGC soldiers against 35,000 Portuguese and African troops.
By 1972, the PAIGC controlled much of Portuguese Guinea despite the presence of the Portuguese troops, but the organization did not attempt to disrupt Portuguese control in Cape Verde. Portuguese Guinea declared independence in 1973 and was granted de jure independence in 1974. Following the April 1974 revolution in Portugal, the PAIGC became an active political movement in Cape Verde. In December 1974, the PAIGC and Portugal signed an agreement providing for a transitional government composed of Portuguese and Cape Verdeans. On June 30, 1975, Cape Verdeans elected a National Assembly which received the instruments of independence from Portugal on July 5, 1975. In the late 1970s and 1980s, most African countries prohibted South African Airways from overflights but Cape Verde allowed them and became a center of activity for the airline's flights to Europe and the United States.
Immediately following the November 1980 coup in Guinea-Bissau, relations between Cape Verde and Guinea-Bissau became strained. Cape Verde abandoned its hope for unity with Guinea-Bissau and formed the African Party for the Independence of Cape Verde (PAICV). Problems have since been resolved and relations between the countries are good. The PAICV and its predecessor established a one-party system and ruled Cape Verde from independence until 1990.
Responding to growing pressure for pluralistic democracy, the PAICV called an emergency congress in February 1990 to discuss proposed constitutional changes to end one-party rule. Opposition groups came together to form the Movement for Democracy (MPD) in Praia in April 1990. Together, they
