Cape Verde–Guinea-Bissau relations Portuguese Cape Verde supplied many colonial officials for the mainland Portuguese Guinea, later Guinea-Bissau, at one point making up three-quarters of the civil service. Cape Verde and Guinea-Bissau campaigned together for independence from Portugal, chiefly led by Amílcar Cabral's Marxist African Party for the Independence of Guinea and Cape Verde from 1956. Cape Verde provided the bourgeoisie that led the anti-colonial movement in Portuguese Guinea. An ideology of unity was key to Cabral's theory of African liberation, and Cabral was himself Cape Verdean Guinea-Bissauan, though the call for unity was partly a tactic to avoid Guinea-Bissau becoming independent without Cape
Santiago, Cape Verde 19th century resulted in an economic crisis, and the growing port of Mindelo on São Vicente replaced Praia as the most important port. With few natural resources and inadequate sustainable investment from the Portuguese, the citizens grew increasingly discontented with the colonial masters, who nevertheless refused to provide the local authorities with more autonomy. The island population were disadvantaged by the Portuguese colonial system and supported Amílcar Cabral and the African Party for the Independence of Guinea and Cape Verde and the independence of 1975. Santiago is the largest island of Cape Verde, with an area of . It is