Operation Green Sea

Operation Green Sea
1970 Portuguese invasion of Guinea
Part of Guinea-Bissau War of Independence
Conakry
Operation Green Sea (Guinea)
Date22 November 1970
Location
Result See aftermath
Belligerents
 Portugal
Guinean dissidents
 Guinea
PAIGC
Commanders and leaders
Alpoim Calvão
António de Spínola
Rebordão de Brito
Lansana Diané 
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), also known as the Battle of Conakry, 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. 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 (who was in Europe at the time), or to topple the regime of Guinean leader Ahmed Sékou Touré.