The Republic of Botswana, since it's independence from Great Britain in 1966, has had consistently one of the most prosperous economies in Africa with one of the most stable political climates. It is a landlocked country in southern Africa, sharing borders with Namibia, Zimbabwe, and South Africa. Botswana is a constitutional republic with a multiparty system. They have an executive branch, headed by President Ian Khama, and a legislative branch. The most popular political party is the Botswana Democratic Party. The country is also rich in natural resources, specifically diamonds and it actually has one of the largest diamond mines in the world, and the mineral industry makes up about 40% of all of government revenue.