Operation Green Sea

Operation Green Sea 1970 Portuguese invasion of Guinea
Part of Guinea-Bissau War of Independence
Conakry Operation Green Sea (Guinea)
Date 22 November 1970 Location Conakry, Guinea Result See aftermath
Belligerents
Portugal Guinean dissidents	Guinea PAIGC
Commanders and leaders
Alpoim Calvão [pt] António de Spínola Rebordão de Brito	Ahmed Sékou Touré Siaka Touré Lansana Diané  Amílcar Cabral
Strength
220 soldiers 200 dissidents 3 patrol boats 2 landing craft	Unknown
Casualties and losses
1 soldier killed 7 dissidents killed	52–500 killed 26 Portuguese prisoners freed 5 supply ships destroyed numerous military/government buildings destroyed

Operation Green Sea (Portuguese: Operação Mar Verde) was an amphibious attack on Conakry, the capital of Guinea, by between 350 and 420 Portuguese soldiers and Portuguese-led Guinean fighters in November 1970.^[1][2] The goals of the operation included the overthrow of Ahmed Sékou Touré's government, capture of the leader of the African Party for the Independence of Guinea and Cape Verde (PAIGC), Amílcar Cabral, destruction of the naval and air assets of the PAIGC and its Guinean supporters, and the rescue of Portuguese POWs held in Conakry.

The attackers withdrew after rescuing the POWs and destroying some PAIGC ships and Guinean Air Force infrastructure, but failed to capture Amílcar Cabral, the leader of PAIGC guerrillas, or to topple the regime of Guinean leader Ahmed Sékou Touré.