Zambia vs. Malawi

in 2004, Zimbabwe dropped objections to plans between Botswana and Zambia to build a bridge over the Zambezi River, thereby de facto recognizing a short, but not clearly delimited, Botswana-Zambia boundary in the river

dispute with Tanzania over the boundary in Lake Nyasa (Lake Malawi) and the meandering Songwe River; Malawi contends that the entire lake up to the Tanzanian shoreline is its territory, while Tanzania claims the border is in the center of the lake; the conflict was reignited in 2012 when Malawi awarded a license to a British company for oil exploration in the lake