Mobutu Sese Seko Nkuku Ngbendu wa za Banga (/məˈbuːtuː ˈsɛseɪ ˈsɛkoʊ/ mə-BOO-too SESS-ay SEK-oh; born Joseph-Désiré Mobutu; 14 October 1930 – 7 September 1997), often shortened to Mobutu Sese Seko or Mobutu and also known by his initials MSS, was a Congolese politician and military officer who was the first and only president of Zaire from 1971 to 1997. Previously, Mobutu served as the second president of the Democratic Republic of the Congo, from 1965 to 1971. He also served as the fifth chairperson of the Organisation of African Unity from 1967 to 1968. During the Congo Crisis in 1960, Mobutu, then serving as Chief of Staff of the Congolese Army, deposed the nation's democratically elected government of Patrice Lumumba with the support of the U.S. and Belgium. Mobutu installed a government that arranged for Lumumba's execution in 1961, and continued to lead the country's armed forces until he took power directly in a second coup in 1965.
To consolidate his power, he established the Popular Movement of the Revolution as the sole legal political party in 1967, changed the Congo's name to Zaire in 1971, and his own name to Mobutu Sese Seko in 1972. Mobutu protected his rule through an intensely autocratic regime and came to preside over a period of widespread human rights violations. He attempted to purge the country of all colonial cultural influence through his program of "national authenticity". Mobutu was the object of a pervasive cult of personality.