Luangwa River ago, there was no way out and the Luangwa Rift filled with a Rift Valley Lake called the Madumabisa Lake, which rivalled Lake Malawi in size. The water of the lake overflowed in a river to the south-west, towards what is now the Kalahari, where it combined with the Okavango, Upper Zambezi, Cuando and Kafue rivers, emptying into the Limpopo River and flowing to the Indian Ocean. Several geological events combined to produce the current river systems. Faulting produced another graben just to the south of the Luangwa Rift, and running east-west: the Zambezi Rift Valley and the Chicoa Trough.
Zambezi River System Action Plan is a culmination of a UN commission, to focus on the projection that the demand for the basins water resources would increase. This competition creates negative utilization, and inefficient use of resources for all these countries in a profitable manner. Early negotiations of ZACPLAN started in the early 1980s to come up with goals to prioritize in utilizing the Zambezi River Basin. A listing of goals in the form of category I project, and category II project were devised. Initial discussions relating to the category I and category II projects were initially disagreed upon, as political relations between resources, and