Samuel Shafiishuna Daniel Nujoma, (; born 12 May 1929) is a Namibian revolutionary, anti-apartheid activist and politician who served three terms as the first President of Namibia, from 1990 to 2005. Nujoma was a founding member and the first president of the South West Africa People's Organization (SWAPO) in 1960. Prior to 1960, SWAPO was known as the Ovambo People's Organisation (OPO). He played an important role as leader of the national liberation movement in campaigning for Namibia's political independence from South African rule. He established the People's Liberation Army of Namibia (PLAN) in 1962 and launched a guerrilla war against the apartheid government of South Africa in August 1966 at Omungulugwombashe, beginning after the United Nations withdrew the mandate for South Africa to govern the territory. Nujoma led SWAPO during the lengthy Namibian War of Independence, which lasted from 1966 to 1989.