Botswana, officially the Republic of Botswana (Tswana: Lefatshe la Botswana), is a landlocked nation in Southern Africa. Formerly the British protectorate of Bechuanaland, Botswana adopted its new name after becoming independent within the Commonwealth on September 30, 1966. It is bordered by South Africa to the south and southeast, Namibia to the west, Zambia to the north, and Zimbabwe to the northeast. The economy, closely tied to South Africa's, is dominated by mining (especially diamonds), cattle, and tourism. The country is named after its largest ethnic group, the Tswana.****************In the late nineteenth century, hostilities broke out between the Tswana inhabitants of Botswana and Ndebele tribes who were migrating into the territory from the Kalahari Desert. Tensions also escalated with the Boer settlers from the Transvaal. After appeals by the Batswana leaders Khama III, Bathoen and Sebele for assistance, the British Government on March 31, 1885 put "Bechuanaland" under its protection. The northern territory remained under direct administration as the Bechuanaland Protectorate and is today's Botswana, while the southern territory became part of the Cape Colony and is now part of the northwest province of South Africa; the majority of Setswana-speaking people today live in South Africa. ********************************** When the Union of South Africa was formed in 1910 out of the main British colonies in the region, the Bechuanaland Protectorate, Basutoland (now Lesotho), and Swaziland (the "High Commission Territories") were not included, but provision was made for their later incorporation. However, a vague undertaking was given to consult their inhabitants, and although successive South African governments sought to have the territories transferred, Britain kept delaying, and it never occurred. The election of the National Party government in 1948, which instituted apartheid, and South Africa's withdrawal from the Commonwealth in 1961, ended any prospect of incorporation of the territories into South Africa.