Angolan Civil War
Nitistas

By the late 1970s, Interior Minister Nito Alves had become a powerful member of the MPLA government. Alves had successfully put down Daniel Chipenda 's Eastern Revolt and the Active Revolt during Angola's War of Independence. Factionalism within the MPLA became a major challenge to Neto's power by late 1975 and Neto gave Alves the task of once again clamping down on dissent. Alves shut down the Cabral and Henda Committees while expanding his influence within the MPLA through his control of the nation's newspapers and state-run television. Alves visited the Soviet Union in October 1976, and may have obtained Soviet support for a coup against Neto. By the time he returned, Neto had grown suspicious of Alves' growing power and sought to neutralize him and his followers, the Nitistas. Neto called a plenum meeting of the Central Committee of the MPLA. Neto formally designated the party as Marxist-Leninist, abolished the Interior Ministry (of which Alves was the head), and established a Commission of Enquiry. Neto used the commission to target the Nitistas, and ordered the commission to issue a report of its findings in March 1977. Alves and Chief of Staff José Van-Dunem, his political ally, began planning a coup d'état against Neto.

Alves and Van-Dunem planned to arrest Neto on 21 May before he arrived at a meeting of the Central Committee and before the commission released its report on the activities of the Nitistas. The MPLA changed the location of the meeting shortly before its scheduled start, throwing the plotters' plans into disarray. Alves attended anyway. The commission released its report, accusing him of factionalism. Alves fought back, denouncing Neto for not aligning Angola with the Soviet Union. After twelve hours of debate, the party voted 26 to 6 to dismiss Alves and Van-Dunem from their positions.

In support of Alves and the coup, the People's Armed Forces for the Liberation of Angola (FAPLA) 8th Brigade broke into São Paulo prison on 27 May, killing the prison warden and freeing more than 150 Nitistas. The 8th brigade then took control of the radio station in Luanda and announced their coup, calling themselves the MPLA Action Committee. The brigade asked citizens to show their support for the coup by demonstrating in front of the presidential palace. The Nitistas captured Bula and Dangereaux, generals loyal to Neto, but Neto had moved his base of operations from the palace to the Ministry of Defence in fear of such an uprising. Cuban troops loyal to Neto retook the palace and marched to the radio station. The Cubans succeeded in taking the radio station and proceeded to the barracks of the 8th Brigade, recapturing it by 1:30 pm. While the Cuban force captured the palace and radio station, the Nitistas kidnapped seven leaders within the government and the military, shooting and killing six.

The MPLA government arrested tens of thousands of suspected Nitistas from May to November and tried them in secret courts overseen by Defense Minister Iko Carreira. Those who were found guilty, including Van-Dunem, Jacobo "Immortal Monster" Caetano, the head of the 8th Brigade, and political commissar Eduardo Evaristo, were shot and buried in secret graves. At least 2,000 followers (or alleged followers) of Nito Alves were estimated to have been killed by Cuban and MPLA troops in the aftermath, with some estimates claiming as high as 90,000 dead. Amnesty International estimated 30,000 died in the purge.

The coup attempt had a lasting effect on Angola's foreign relations. Alves had opposed Neto's foreign policy of non-alignment, evolutionary socialism, and multiracialism, favoring stronger relations with the Soviet Union, which Alves wanted to grant military bases in Angola. While Cuban soldiers actively helped Neto put down the coup, Alves and Neto both believed the Soviet Union opposed Neto. Cuban Armed Forces Minister Raúl Castro sent an additional four thousand troops to prevent further dissension within the MPLA's ranks and met with Neto in August in a display of solidarity. In contrast, Neto's distrust of the Soviet leadership increased and relations with the USSR worsened. In December, the MPLA held its first party Congress and changed its name to the MPLA-Worker's Party (MPLA-PT). The Nitista attempted coup took a toll on the MPLA's membership. In 1975, the MPLA had reached 200,000 members, but after the first party congress, that number decreased to 30,000.
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