African Party for the Independence of Cape Verde
However, the elites in Cape Verde opposed unification, there were constitutional and legal differences, and the trade between them was minor. On November 14, 1980, a coup by João Bernardo Vieira against "foreign" mestiços overthrew the government of Luís Cabral (half-brother of Amílcar) in Guinea-Bissau, leading to Cape Verde separating under Pedro Pires on January 20, 1981 and forming the ruling African Party for the Independence of Cape Verde (PAICV).