1984 Guinea-Bissau coup attempt
After a lengthy power struggle in 1984 in Guinea-Bissau over the leadership and organizational direction of its ruling African Party for the Independence of Guinea and Cape Verde, Prime Minister Victor Saúde Maria was arrested by President João Bernardo Vieira on the grounds of attempting to stage a coup. == Prelude == Guinea-Bissau had declared independence from Portugal in 1973 following a long insurgency which was recognized by Portugal in 1974.
Source: Wikipedia — 1984 Guinea-Bissau coup attempt (CC BY-SA 4.0)