Sierra Leone, formally the Republic of Sierra Leone and colloquially Salone, is a country on West Africa's southwest coast. It is bordered on the southeast by Liberia and on the northeast by Guinea. Sierra Leone has a warm climate, a varied landscape ranging from savanna to rainforests, and a population of 7,092,113 people according to the 2015 census. Freetown is the country's capital and largest city. The country is split into five administrative regions, each of which is further divided into sixteen districts. Sierra Leone is a federal republic with a unicameral legislature and a president who is directly elected. Sierra Leone has a Muslim majority (approximately 78%), but a significant Christian minority (approximately 21%). Sierra Leone's Muslims and Christians are highly accepting of one another, and all of the country's main Muslim and Christian holidays are recognized as national holidays. On April 27, 1961, Sierra Leone declared independence from the United Kingdom, and Milton Margai became the country's first Prime Minister. On May 27, 1962, Sierra Leone held its first general election as an independent country. Siaka Stevens, a strongman president, ruled Sierra Leone from 1968 to 1985. Sierra Leone was a one-party state from 1978 to 1985, with President Stevens' political party, the All People's Congress, being the only legal political party in the country. President Joseph Saidu Momoh, Stevens' hand-picked alternative, re-adopted Sierra Leone's multiparty democratic constitution in 1991. From March 23, 1991, to March 23, 2002, a coalition of ex-Sierra Leone soldiers waged a violent civil war in an unsuccessful effort to overthrow the government of Sierra Leone. The APC's 24-year rule in Sierra Leone came to an end on April 29, 1992, when the country was overthrown by a military coup, and a junta government headed by Captain Valentine Strasser, 25, governed the country from 1992 to 1996. In 1996, the Sierra Leone People's Party's Ahmad Tejan Kabbah was sworn in as president after winning the election that year. On May 25, 1997, the Sierra Leone military overthrew President Kabbah in a coup. In February 1998, President Kabbah was restored by a coalition of West African ECOWAS armed forces headed by Nigeria. President Kabbah declared the civil war officially over in January 2002. From 1998 to the present, Sierra Leone has had an uninterrupted democratic government. Sierra Leone is home to sixteen ethnic groups, the Temne and Mende being the two largest and most dominant. Krio, descendants of freed African American and West Indian slaves, make up about 2% of the country's population. Although English is the official language of schools and government administration, Krio is the most widely spoken language in Sierra Leone, with 97% of the population speaking it. Sierra Leone has an abundance of natural resources, including diamonds, gold, bauxite, and aluminum.