Zambia tributaries rise in Angola's central highlands. The edge of the Cuando River floodplain (not its main channel) forms Zambia's southwestern border, and via the Chobe River that river contributes very little water to the Zambezi because most is lost by evaporation. Two of the Zambezi's longest and largest tributaries, the Kafue and the Luangwa, flow mainly in Zambia. Their confluences with the Zambezi are on the border with Zimbabwe at Chirundu and Luangwa town respectively. Before its confluence, the Luangwa River forms part of Zambia's border with Mozambique. From Luangwa town, the Zambezi leaves Zambia and flows into Mozambique, and
Tonga people (Zambia and Zimbabwe) Kariba area, and other parts of Matabeleland. They number up to 300,000 and are mostly subsistence farmers. ln Zimbabwe the language of the Tonga people is called "chitonga". The Tonga People were settled along Lake Kariba after the construction of the Kariba Dam wall. They stretch from Chirundu, Kariba town, Mola,Binga to Victoria Falls. Like any other tribes in Zimbabwe, the educated ones relocated to inner cities in search of jobs and better education. In the named places, we found different tribes in Zimbabwe socialising together. The Tonga language of Zambia is spoken by about 1.38 million people in Zambia