On 7 April 1999, Botswana and South Africa signed a historic bilateral agreement whereby both countries undertook to manage their adjacent national parks, the Gemsbok National Park in Botswana and the Kalahari Gemsbok National Park in South Africa as a single ecological unit.
1999年4月7日，博茨瓦纳和南非签署了一份历史上的双边协议，两国管理毗邻的国家公园，将博茨瓦纳的大羚羊国家公园和南非喀拉哈里大羚羊国家公园作为单独的生态单元。