Isaac Saney writes for the Morning Herald: Cuba's direct, critical and extensive role in the struggle against the apartheid regime in South Africa is little known in the West. November 5th,  2005 marks the 30th anniversary of Cuba's decision to deploy combat-troops,  at the request of the Angolan government, to repulse a major South African  invasion of October 1975. In 1987-1988, a decisive battle occurred in the  south-eastern Angolan town of Cuito Cuanavale. When it occurred, the battle  was the largest military engagement in Africa since the North African  battles of the Second World War. Arrayed on one side were the armed forces  of Cuba, Angola and the South West African People's Organization (SWAPO); on  the other, the South African Defense Forces, military units of the Union for the Total National Independence of Angola (UNITA - the South  African-supported organization) and the South African Territorial Forces of  Pretoria-controlled Namibia. [Read]