Forerunner
In 1956, its forerunner, the African Party for the Independence of Guinea and Cape Verde (PAIGC), was founded by the Cape Verdean nationalist leader Amílcar Cabral. PAIGC fought to overthrow the Portuguese Empire, unify Cape Verde and Guinea-Bissau, and of use its vanguardism to advance socialist revolution.
From 1961 on, the PAIGC fought a guerrilla warfare campaign in cooperation with its fraternal party umbrella group, the CONCP, during the Portuguese Colonial War. By 1973 the PAIGC controlled Guinea-Bissau, while Portugal's own Carnation Revolution in 1974 effectively dissolved the empire, relinquishing Cape Verde within the next year.
After the wars of national liberation, the PAIGC established a socialist state within both territories under the late Amilcar Cabral's brother, Luís Cabral.
Read more about this topic: African Party For The Independence Of Cape Verde