How did Guinea-Bissau’s independence struggle contribute to political change in Portugal in 1974?

The independence struggle in Guinea-Bissau was a critical factor in the political transformation of Portugal in 1974. Following the African Party for the Independence of Guinea and Cabo Verde (PAIGC) launch of an armed campaign in 1963, the movement achieved significant military progress, eventually controlling large portions of the territory.12

The declaration of independence by Guinea-Bissau on September 24, 1973, compounded by the strain of ongoing colonial wars in other African territories, created an unsustainable crisis for the Portuguese government. This pressure, combined with internal military dissatisfaction regarding colonial war policies, led to the Revolution of the Carnations on April 25, 1974.123

This successful coup, orchestrated by the Armed Forces Movement, dismantled the existing dictatorship and paved the way for the new regime to begin negotiations with African nationalist movements, ultimately ending Portugal's long-standing colonial involvement in Africa.132