The Zambezi River, lying wholly within the SADC, is the largest watercourse system in the region. Its catchment area is some 1,300,000 square kilometres, occupying the territories of Angola, Botswana, Malawi, Mozambique, Namibia, Tanzania, Zambia and Zimbabwe. Out of these riparian states, Zambia, Angola, Zimbabwe, Mozambique and Malawi have the largest share of its basin, with catchment area percentages of 40.7, 18.3, 15.9, 11.4 and 7.7, respectively. The major tributaries are Shire River from the territories of Tanzania, Malawi and Mozambique, the Luangwa, Kafue and Kabompo river basins lying wholly within the territory of Zambia, the Luena/main Zambezi river from the territory of Angola while the Cuando/Chobe River is in the territories of Angola, Namibia and Botswana.