Cape Verde independence for the archipelago in 1975. 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 30 June 1975, Cape Verdeans elected a National Assembly which received the instruments of independence from Portugal on 5 July 1975. In the late 1970s and 1980s, most African countries prohibited South African Airways from overflights but Cape Verde allowed them and became a centre of activity for the airline's flights to Europe and the
African Party for the Independence of Guinea and Cape Verde the 1999–2000 elections. However, it returned to office after winning parliamentary elections in 2004 and presidential elections in 2005, since which it has remained the largest party in the National People's Assembly. The PAIGC also governed Cape Verde, from its independence in 1975 to 1980. After the military coup in Guinea-Bissau in 1980, the Cape Verdean branch of the PAIGC was converted into a separate party, the African Party for the Independence of Cape Verde. The party was established in Bissau on 19 September 1956 as the African Party of Independence ("Partido Africano da Independência"), and was based on the