Swaziland () or Eswatini (Swazi: eSwatini [ɛswa̯ˈtiːni]), officially the Kingdom of Eswatini since 19 April 2018 (Swazi: Umbuso weSwatini), is a landlocked sovereign state in Southern Africa. It is bordered by Mozambique to its northeast and South Africa to its north, west and south. The country and its people take their names from Mswati II, the 19th-century king under whose rule Swazi territory was expanded and unified.At no more than 200 kilometres (120 mi) north to south and 130 kilometres (81 mi) east to west, Swaziland is one of the smallest countries in Africa; despite this, its climate and topography are diverse, ranging from a cool and mountainous highveld to a hot and dry lowveld. The population is primarily ethnic Swazis, whose language is Swazi. They established their kingdom in the mid-18th century under the leadership of Ngwane III; the present boundaries were drawn up in 1881 in the midst of the Scramble for Africa. After the Second Boer War, Swaziland was a British protectorate from 1903, until it regained its independence on 6 September 1968.The country is an absolute diarchy, ruled jointly by Ngwenyama ("King") Mswati III and Ndlovukati ("Queen Mother") Ntfombi Tfwala since 1986. The former is the administrative head of state and appoints the country's prime ministers and a number of representatives of both chambers (the Senate and House of Assembly) in the country's parliament, while the latter is the national head of state, serving as keeper of the ritual fetishes of the nation and presiding during the annual Umhlanga rite. Elections are held every five years to determine the House of Assembly and the Senate majority. The current constitution was adopted in 2005. Umhlanga, held in August/September, and incwala, the kingship dance held in December/January, are the nation's most important events.Swaziland is a developing country with a small economy. With a GDP per capita of $9,714, it is classified as a country with a lower-middle income. As a member of the Southern African Customs Union (SACU) and the Common Market for Eastern and Southern Africa (COMESA), its main local trading partner is South Africa; in order to ensure economic stability, Swaziland's currency, the lilangeni, is pegged to the South African rand. Swaziland's major overseas trading partners are the United States and the European Union. The majority of the country's employment is provided by its agricultural and manufacturing sectors. Swaziland is a member of the Southern African Development Community (SADC), the African Union, the Commonwealth of Nations and the United Nations.
The Swazi population faces major health issues: HIV and, to a lesser extent, tuberculosis are widespread. It is estimated that 26% of the adult population is HIV-positive. As of 2018, Swaziland has the 12th lowest life expectancy in the world, at 58 years. The population of Swaziland is fairly young, with a median age of 20.5 years and people aged 14 years or younger constituting 37.4% of the country's total population. The present population growth rate is 1.195%.