Ahmed Sékou Touré
In 1970 the Portuguese Air Force (FAP) began to use similar weapons to those the US was using in the Vietnam War: napalm and defoliants in order to find the insurgents or at least deny them the cover and concealment needed for rebel ambushes. In an effort to hamper assistance to the PAIGC from the neighboring Republic of Guinea, Portugal commenced "Operação Mar Verde" or "Operation Green Sea" on 22 November 1970 in an attempt to overthrow Ahmed Sékou Touré, the leader of the Republic of Guinea and staunch PAIGC ally, and cut off supply lines to PAIGC insurgents. The operation involved a daring raid on Conakry, a PAIGC safe haven, in which 220 Portuguese "Fuzileiros" (amphibious assault troops) and 200 Guinean anti-Ahmed Sékou Touré insurgents attacked the city.