Cassinga Day is a national public holiday in Namibia

Namibia

Namibia, officially the Republic of Namibia , is a country in southern Africa whose western border is the Atlantic Ocean. It shares land borders with Angola and Zambia to the north, Botswana to the east and South Africa to the south and east. It gained independence from South Africa on 21 March...

 remembering the Cassinga massacre. Occurring on 4 May yearly, the day "remembers those (approximately 600) killed in 1978 when the South African Defence Force

South African Defence Force

The South African Defence Force was the South African armed forces from 1957 until 1994. The former Union Defence Force was renamed to the South African Defence Force in the Defence Act of 1957...

 attacked a SWAPO base (refugee camp) at Cassinga

Cassinga

Cassinga is a former town in the Huíla province of southern Angola.The transliteration Kassinga is also commonly used, with the "K" being a mutation of the original Portuguese name either by German miners, or by indigenous people in whose language the letter "K" is also common...

 in southern Angola

Angola

Angola, officially the Republic of Angola , is a country in south-central Africa bordered by Namibia on the south, the Democratic Republic of the Congo on the north, and Zambia on the east; its west coast is on the Atlantic Ocean with Luanda as its capital city...

". Commemorations are marked yearly by ceremonies at Heroes' Acre, outside of Windhoek

Windhoek

Windhoek is the capital and largest city of the Republic of Namibia. It is located in central Namibia in the Khomas Highland plateau area, at around above sea level. The 2001 census determined Windhoek's population was 233,529...

. These ceremonies are attended by many important national political figures, including Presidents Hifikepunye Pohamba

Hifikepunye Pohamba

Hifikepunye Lucas Pohamba is the second and current President of Namibia. He won the 2004 and 2009 presidential elections overwhelmingly as the candidate of the South West Africa People's Organisation ruling party, taking office in March 2005. He has also been the President of SWAPO since...

 and Sam Nujoma

Sam Nujoma

Samuel Daniel Shafiishuna Nujoma is a Namibian politician who was the first President of Namibia from 1990 to 2005. He led the South-West Africa People's Organisation in its long struggle against South African rule and took office as President when Namibia obtained independence on 21 March 1990...

.