section_path: History/Independence and political crisis (1960–1965)
section_name: Independence and political crisis (1960–1965)
paragraph_text: Independence and political crisis (1960–1965)
  
  In May 1960, a growing nationalist movement, the Mouvement National Congolais led by Patrice Lumumba, won the parliamentary elections. Lumumba became the first Prime Minister of the Republic of the Congo, on 24 June 1960. The parliament elected Joseph Kasa-Vubu as president, of the Alliance des Bakongo (ABAKO) party. Other parties that emerged included the Parti Solidaire Africain led by Antoine Gizenga, and the Parti National du Peuple led by Albert Delvaux and Laurent Mbariko.
  
  The Belgian Congo achieved independence on 30 June 1960 under the name "République du Congo" ("Republic of Congo" or "Republic of the Congo" in English). Shortly after, on 15 August 1960, the neighboring French colony of Middle Congo also gained independence and adopted the same name, ' Republic of Congo.' To avoid confusion between the two, the former Belgian Congo became known as the Democratic Republic of the Congo (DR Congo), while the former French colony retained the name 'Republic of the Congo' (Congo).
  
  Shortly after independence the Force Publique mutinied, and on 11 July the province of Katanga (led by Moïse Tshombe) and South Kasai engaged in secessionist struggles against the new leadership. Most of the 100,000 Europeans who had remained behind after independence fled the country. After the United Nations rejected Lumumba's call for help to put down the secessionist movements, Lumumba asked for assistance from the Soviet Union, who accepted and sent military supplies and advisers. On 23 August, the Congolese armed forces invaded South Kasai. Lumumba was dismissed from office on 5 September 1960 by Kasa-Vubu who publicly blamed him for massacres by the armed forces in South Kasai and for involving Soviets in the country. On 7 September, Lumumba made a speech to the Congolese House of Representatives, arguing his dismissal was illegal under the nation's laws. Congolese law gave parliament, not the president, the authority to dismiss a government minister. The House and Senate both rejected the dismissal of Lumumba, but the removal proceeded unconstitutionally.
  
  On 14 September, Colonel Joseph Mobutu, with the backing of the US and Belgium, removed Lumumba from office. On 17 January 1961, Lumumba was handed over to Katangan authorities and executed by Belgian-led Katangan troops. A 2001 investigation by Belgium's Parliament found Belgium "morally responsible" for the murder of Lumumba, and the country has since officially apologised for its role in his death.
  
  On 18 September 1961, in ongoing negotiations of a ceasefire, a plane crash near Ndola resulted in the death of Dag Hammarskjöld, the Secretary-General of the United Nations, along with all 15 passengers, setting off a succession crisis. Amidst widespread confusion and chaos, a temporary government was led by technicians (the Collège des commissaires généraux). Katangan secession ended in January 1963 with the assistance of UN forces. Several short-lived governments of Joseph Ileo, Cyrille Adoula, and Moise Kapenda Tshombe took over in quick succession.
  
  Meanwhile, in the east of the country, Soviet and Cuban-backed rebels called the Simbas rose up, taking a significant amount of territory and proclaiming a communist "People's Republic of the Congo" in Stanleyville. The Simbas were pushed out of Stanleyville in November 1964 during Operation Dragon Rouge, a military operation conducted by Belgian and American forces to rescue hundreds of hostages. Congolese government forces fully defeated the Simba rebels by November 1965.
  
  Lumumba had previously appointed Mobutu chief of staff of the new Congo army, Armée Nationale Congolaise. Taking advantage of the leadership crisis between Kasavubu and Tshombe, Mobutu garnered enough support within the army to launch a coup. A constitutional referendum the year before Mobutu's coup of 1965 resulted in the country's official name being changed to the "Democratic Republic of the Congo". In 1971 Mobutu changed the name again, this time to "Republic of Zaire".