Congo Crisis 1960-1965: Independence, Secession and Lumumba

The Congo Crisis was the period of mutiny, secession, foreign intervention and civil war that followed the independence of the Belgian Congo on 30 June 1960 and lasted until Joseph-Désiré Mobutu seized power in November 1965. It produced the murder of Prime Minister Patrice Lumumba, one of the largest United Nations operations of the Cold War and the death of UN Secretary-General Dag Hammarskjöld. The crisis shaped the Democratic Republic of the Congo for decades.

Background: a hurried independence

The Congo had been the personal possession of King Leopold II as the Congo Free State until 1908, when Belgium annexed it after international outrage over forced labour. Belgian rule was paternalistic: it developed mines and primary schooling, but in 1960 there were only a handful of Congolese university graduates and no Congolese officers in the army, the Force Publique.

Nationalist pressure rose quickly after riots in Léopoldville (now Kinshasa) in January 1959. At a Round Table Conference in Brussels in early 1960, Belgium agreed to independence on 30 June, only months away. Elections in May made Lumumba’s Mouvement National Congolais the largest party. Lumumba became Prime Minister and his rival Joseph Kasa-Vubu President.

What happened

At the independence ceremony, King Baudouin praised the “civilising” work of Leopold II, and Lumumba replied with an unscheduled speech condemning the humiliations of colonial rule. Five days later, on 5 July, soldiers mutinied against their Belgian officers. Attacks on Europeans prompted Belgium to send troops on 10 July without the Congolese government’s consent.

On 11 July Moïse Tshombe declared the secession of Katanga, the province that produced most of the country’s copper and cobalt, backed by Belgian officers and the mining company Union Minière du Haut-Katanga. South Kasai, under Albert Kalonji, followed in August. Lumumba appealed to the United Nations, and on 14 July the Security Council authorised the UN Operation in the Congo (ONUC).

Lumumba’s fall and murder

The UN at first refused to use force against Katanga, and Lumumba turned to the Soviet Union for transport and supplies. This alarmed Western governments; a US Senate inquiry, the Church Committee, found in 1975 that the Central Intelligence Agency had plotted to kill him. On 5 September Kasa-Vubu dismissed Lumumba, Lumumba dismissed Kasa-Vubu, and on 14 September the army chief of staff, Colonel Mobutu, announced he was “neutralising” the politicians.

Lumumba was placed under house arrest, escaped in November and was captured on his way to his supporters in Stanleyville (now Kisangani). On 17 January 1961 he was flown to Katanga and shot with his colleagues Maurice Mpolo and Joseph Okito. A Belgian parliamentary inquiry in 2001 found that Belgium bore “moral responsibility”, and in 2022 Belgium returned a tooth, the only known remains, to his family.

The UN and the end of Katanga

Lumumba’s death caused outrage across Africa and the wider world. In February 1961 the Security Council authorised ONUC to use force to prevent civil war and to expel foreign mercenaries. Dag Hammarskjöld died when his plane crashed near Ndola in Northern Rhodesia on 18 September 1961, on his way to meet Tshombe; the cause of the crash is still debated.

After repeated rounds of fighting, UN forces launched Operation Grandslam in December 1962. Tshombe ended the secession in January 1963. ONUC, which had numbered about 20,000 troops at its peak, withdrew on 30 June 1964.

Rebellions, rivals and the Cold War

Peace did not follow. In 1964 rebels inspired partly by Lumumba’s legacy, known as the Simba, took much of the east and proclaimed a “People’s Republic” in Stanleyville. In a surprising reversal, Tshombe was recalled as Prime Minister in July 1964 and used white mercenaries against them. In November 1964 Belgian paratroopers, flown in by US aircraft, retook Stanleyville to rescue hostages in Operation Dragon Rouge.

A new power struggle between Kasa-Vubu and Tshombe gave Mobutu his opportunity. On 25 November 1965 he took power in a bloodless coup, beginning a dictatorship that lasted until 1997.

A divided country

At its worst, in late 1960 and 1961, the Congo had four rival centres of power. The central government in Léopoldville was recognised by most of the world and by the UN. Katanga under Tshombe, in the south-east, and South Kasai under Kalonji, in the centre, claimed independence. In Stanleyville, Lumumba’s deputy Antoine Gizenga set up a rival government that claimed to be the legitimate continuation of Lumumba’s and received recognition from the Soviet bloc and several African and Asian states.

A parliamentary compromise brought Cyrille Adoula to office as Prime Minister in August 1961, and Gizenga briefly joined his government before he was arrested in early 1962. The country’s provinces were later redrawn into smaller units, partly to weaken regional power bases like Katanga.

The Cold War dimension

The Congo mattered to the superpowers because of its size, its position in the centre of Africa and its minerals, including copper, cobalt, diamonds and the uranium that had been used in the American atomic bombs of 1945. The United States feared that Lumumba would open the country to Soviet influence; the Soviet Union presented itself as the defender of African independence against Western “imperialists”.

Neither superpower sent its own combat troops, but both acted through proxies, money and advisers. Soviet leader Nikita Khrushchev attacked Hammarskjöld at the UN General Assembly in 1960 and demanded his replacement. Western governments, for their part, came to rely on Mobutu as a reliable anti-communist partner, a relationship that lasted for most of his rule.

Myths and facts

A common belief is that the UN mission was simply a Western instrument. In reality ONUC’s troops came mainly from countries such as India, Ethiopia, Ireland, Sweden, Ghana and Tunisia, and its policies were fiercely contested among UN members of all blocs. Another misconception is that Katanga was a popular national movement; it had real local support among some groups, but it depended heavily on Belgian officers, foreign mercenaries and mining revenue.

Key people

• Patrice Lumumba – first Prime Minister, a charismatic nationalist who became a symbol of anti-colonialism after his murder.
• Joseph Kasa-Vubu – first President, leader of the ABAKO party.
• Moïse Tshombe – leader of Katanga’s secession and later national Prime Minister.
• Joseph-Désiré Mobutu – army chief who became President in 1965.
• Dag Hammarskjöld – UN Secretary-General, killed in 1961 while working to end the crisis.

By the numbers

Legacy

Mobutu’s long rule, renamed Zaire from 1971, brought stability at the price of repression and massive corruption, and its collapse led to the Second Congo War. Lumumba is honoured across Africa as a martyr of independence, and his murder remains one of the most debated episodes of decolonisation. The crisis was also an early warning of how the Cold War could turn African independence into a proxy struggle.

Timeline

• 1960, 30 June: The Congo becomes independent; Lumumba is Prime Minister.
• 1960, 5 July: The Force Publique mutinies against its Belgian officers.
• 1960, 11 July: Moïse Tshombe declares the secession of Katanga.
• 1960, 14 July: The UN Security Council authorises ONUC.
• 1960, 14 September: Colonel Mobutu suspends the politicians and takes control.
• 1961, 17 January: Lumumba, Mpolo and Okito are killed in Katanga.
• 1961, 18 September: Dag Hammarskjöld dies in a plane crash near Ndola.
• 1963, January: The Katanga secession ends after UN military operations.
• 1964, 24 November: Operation Dragon Rouge retakes Stanleyville.
• 1965, 25 November: Mobutu seizes power.

Why it matters

The Congo Crisis showed how a rushed and poorly prepared decolonisation, combined with mineral wealth and superpower rivalry, could tear a new state apart. Its outcome, a long military dictatorship, shaped central Africa for the rest of the twentieth century, and it was a defining moment of the Year of Africa.