Portuguese Cape Verde cocoa plantations of Portuguese São Tomé and Príncipe. In the lead-up to and during the Portuguese Colonial War, those planning and fighting in the armed conflict in Portuguese Guinea often linked the goal of liberation of Guinea-Bissau to the goal of liberation in Cape Verde. For instance, in 1956, Amílcar and Luís Cabral founded the African Party for the Independence of Guinea and Cape Verde (PAIGC). However, there was no armed conflict in Cape Verde, and ultimately independence for Cape Verde resulted from negotiation with Portugal after the April 1974 Carnation Revolution. In August 1974, an agreement was signed in
History of Cape Verde coup in Guinea-Bissau (Portuguese Guinea declared independence in 1973 and was granted de jure independence in 1974), relations between the two countries 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 state and ruled Cape Verde from independence until 1990. Responding to growing pressure for a political opening, the PAICV called an emergency congress in February 1990 to discuss proposed constitutional changes to end one-party rule.