Koevoet (, Afrikaans for crowbar, also known as Operation K or SWAPOL-COIN) was the counterinsurgency branch of the South West African Police (SWAPOL). Its formations included white South African police officers, usually seconded from the South African Security Branch or Special Task Force, and black volunteers from Ovamboland. Koevoet was patterned after the Selous Scouts, a multiracial Rhodesian military unit which specialised in counter-insurgency operations. Its title was an allusion to the metaphor of "prying" insurgents from the civilian population.
Koevoet was active during the South African Border War between 1979 and 1989, during which it carried out hundreds of search and destroy operations against the People's Liberation Army of Namibia (PLAN). Koevoet's methods were controversial, and the unit was accused of committing numerous atrocities against civilians. Over the course of the war, it killed or captured 3,225 insurgents and participated in 1,615 individual engagements. Koevoet was disbanded in 1989 as part of the implementation of United Nations Security Council Resolution 435, which effectively ended the South African Border War and ushered in South West African independence as Namibia. The mandate system was formed as a compromise between those who advocated an Allied annexation of former German and Turkish territories, and another proposition put forward by those who wished to grant them to an international trusteeship until they could govern themselves. However, the South African government interpreted the mandate as a veiled annexation and took steps to integrate South West Africa as a domestic province. Over the next decade, low intensity conflicts broke out in many of the remaining European colonies as militant African nationalist movements emerged, often with direct backing from the Soviet Union and revolutionary left-wing governments in the Middle East. The nationalists were often encouraged to take up arms by the success of indigenous anti-colonial guerrilla movements around the world, namely in French Indochina and French Algeria, as well as the rhetoric of contemporary African statesmen such as Ahmed Ben Bella, Gamal Abdel Nasser, and Julius Nyerere. In 1966 SWALA initiated an insurgency against the South African government, sparking what would later evolve into a wider regional conflict known as the South African Border War.
As the war intensified, so did international sympathy for SWAPO's cause. The United Nations declared that South Africa had failed in its obligations to ensure the moral and material well-being of the indigenous inhabitants of South West Africa, and had thus disavowed its own mandate. On 12 June 1968, the UN General Assembly adopted a resolution which proclaimed that, in accordance with the desires of its people, South West Africa be renamed Namibia. In recognition of this landmark decision, SWALA was renamed the People's Liberation Army of Namibia (PLAN). The SADF's primary source of manpower were white national servicemen fulfilling their terms of compulsory military service under the leadership of professional career officers. The initial commitment of South African troops to the South West African theatre in 1974 was about 15,000 men. The most powerful armed group outside the direct command structure of the SADF emerged in Ovamboland, SWAPO's traditional political stronghold and the source of its support base. The war effort became less likely to entail clear-cut confrontations between foreign South African troops and local PLAN insurgents, but significant numbers of Namibians fighting under South African command. Furthermore, the SADF was overstretched and if efficient local forces could be raised to take over the bulk of the defensive and local security tasks, it would be more free to pursue conventional offensive operations.
Both the SADF and South African Police (SAP) launched parallel initiatives to create Ovambo counter-insurgency units between 1976 and 1980. Dreyer had served with the SAP in Rhodesia during the Rhodesian Bush War and drew heavily on his operational experiences there while shaping Koevoet's mandate and organisational structure. The SAP especially appreciated the small unit tactics of the Selous Scouts, which had demonstrated how a few operators, disguised as insurgents and trained to high levels of subterfuge, could have an effect utterly disproportionate to their size. Koevoet monitored an area adjacent to the Angolan border with screening patrols coordinated between three permanent base strongpoints at Opuwo, Rundu, and Oshakati. Koevoet operators spent most of their time following suspicious tracks in search of insurgents, sometimes for over a hundred kilometres. Under the terms of the agreement, both the Cuban withdrawal and the independence process in Namibia would be monitored by two multinational peacekeeping forces known as the United Nations Angola Verification Mission (UNAVEM) and the United Nations Transition Assistance Group (UNTAG), respectively. UNTAG planned to confine both PLAN and the SADF to their respective bases, demobilise all paramilitary forces that belonged to neither the SADF nor to the civil police, and supervise the return of refugees via designated entry points to participate in new elections. This was scheduled to become a permanent ceasefire on 1 April 1989, at which time UNTAG was supposed to arrive in force and monitor the belligerent parties. UN Secretary-General Javier Pérez de Cuéllar declared that Koevoet was considered a paramilitary force not part of the SADF or the civil police, and should therefore be disbanded.
PLAN had consistently maintained that a precondition of any settlement was that it be permitted to establish base camps inside Namibia. The South African government consistently rejected PLAN's demands, likely because it feared the insurgents would interfere with the political process. On the morning of 1 April, the first PLAN cadres crossed into Ovamboland, unhindered by UNTAG, which had failed to monitor their activity in Angola due to the delays in its arrival. The decision was made after joint consultations with South African Foreign Minister Pik Botha and UNTAG commander Dewan Prem Chand. The number of Koevoet operators authorised for remobilisation was approximately the size of two battalions. In practice, Koevoet disregarded the UN's directives and continued carrying out counter-insurgency patrols with automatic weapons. Namibian refugees being repatriated from Angola were intimidated by Koevoet's presence due to its controversial reputation among exiles in general and SWAPO supporters in particular.
On 3 April, de Cuéllar had notified the UN Security Council that Koevoet had been reactivated. In all, 43,400 SWAPO members were repatriated to Namibia, at least 32,000 of whom were former insurgents. Almost two weeks later, United Nations Security Council Resolution 640 was passed, condemning Koevoet for its apparent "intimidation and harassment of the civilian population" and calling for its immediate disbandment, as well as the dismantling of its command structure. Conventional counter-terrorism became the responsibility of the unrelated Special Reserve Force. The Zulu teams were designated alphabetically from A to Y and an individual team was identified by its letter's corresponding code in the NATO phonetic alphabet (i.e. Zulu Alpha). Aside from political activities, PLAN sabotaged rural infrastructure, namely power lines.
Koevoet's response was twofold: firstly, the unit carried out patrols to intercept PLAN insurgents near the Namibian border before they could get any further into the country itself. This helped sow suspicion in the ranks of the real insurgents and leave their informants uncertain as to whether any insurgent was a real PLAN fighter; it thus undermined PLAN's capacity to conduct politicisation programmes within local communities.
Over the course of the South African Border War, PLAN accused Koevoet of committing numerous human rights violations, especially extrajudicial killings and assassinations. The most controversial incident allegedly involving "pseudo-guerrillas" was the murder of a family of 8 Ovambo civilians at Oshipanda. It was favourably inclined towards PLAN's claims that Koevoet operators carried out atrocities during "pseudo-guerrilla" operations to discredit the insurgent cause.