The People's Liberation Army of Namibia (PLAN) was the military wing of the South West Africa People's Organisation (SWAPO). It fought against the South African Defence Force (SADF) and South West African Territorial Force (SWATF) during the South African Border War. Throughout its history, PLAN had both irregular insurgent and semi-conventional units, as well as an extensive recruitment network in rural South West Africa (Namibia). During the war most of its domestic activities consisted of mine warfare and acts of sabotage. PLAN initially lacked any standing units, and the bulk of operations were carried out by political exiles who spent cyclical periods residing in refugee camps in neighbouring states before launching raids inside South West Africa itself. By the end of the war, PLAN had 32,000 militants under arms, including three battalions of semi-conventional troops equipped with heavy weapons.

The South West Africa People's Organisation, officially known as the SWAPO Party of Namibia, is a political party and former independence movement in Namibia. Founded in 1960, it has been the governing party in Namibia since the country achieved independence in 1990. The party continues to be dominated in number and influence by the Ovambo ethnic group.