The Zambian Defence Force is the military of Zambia. It consists of the Zambian Army, the Zambian Air Force, and the Zambia National Service. The defence forces were formed at Zambian independence on 24 October 1964, from constituent units of the dissolved Federation of Rhodesia and Nyasaland Armed Forces. During the 1970s and 1980s, it played a key role in a number of regional conflicts, namely the South African Border War and Rhodesian Bush War. Being a landlocked country Zambia has no navy, although the Zambian Army maintains a maritime patrol unit for maintaining security on inland bodies of water.'Zambia Army Commando Unit splits, forms Marine Unit', Lusaka Voice, 18 February 2015, accessed 5 February 2017, <http://lusakavoice.com/2015/02/18/zambia-army-commando-unit-splits-forms-marine-unit/ >

History Background and independence The Zambian Defence Force had its roots in the Northern Rhodesia Regiment, a multi-ethnic military unit which was raised by the British colonial government and had served with distinction during World War II. In 1960, the constituent colonies of Northern Rhodesia, Southern Rhodesia, and Nyasaland were amalgamated into a self-governing British dependency known as the Federation of Rhodesia and Nyasaland. When the federation was dissolved three years later, the assets and personnel of its armed forces were integrated with those of its successor states, including Northern Rhodesia, which subsequently gained independence as Zambia. For example, Zambia received half the federal armoured car squadron as well as some light patrol aircraft. Zambia also inherited the command structures of the Northern Rhodesia Regiment as well as the Northern Rhodesian Air Wing, which formed the basis for the new Zambian Army and Zambian Air Force, respectively.

Relations almost immediately soured between Zambia and Southern Rhodesia, now known simply as Rhodesia, which had issued its own unilateral declaration of independence (UDI) in 1965. Reports that Rhodesian security forces had occupied Kariba Dam prompted Zambian President Kenneth Kaunda to mobilise the ZDF for the first time and deploy troops to the border. The ZDF was withdrawn when Kaunda received a guarantee that Zambia's supply of Kariba power would not be interrupted. Nevertheless, military tension between the two nations remained high, and border incidents resulting in civilian deaths occurred. In November 1966, Rhodesian troops fired across the border and killed a Zambian woman on the north bank of the Zambezi River. In January 1973, Zambian troops fired on a South African police patrol boat on the Zambezi. Shortly afterwards, Defence Minister Grey Zulu ordered that the ZDF return to the border in force. Later in the month Kaunda brought the first of several complaints before the United Nations Security Council charging that Rhodesian security forces were violating Zambia's sovereignty and territorial integrity with South African support. Tensions flared again when Zambian troops fired across the border and killed two Canadian tourists on the Rhodesian side of Victoria Falls in May 1973.

The increasing prospect of war with Rhodesia posed several unique security dilemmas for the ZDF. Firstly, Zambia lacked the manpower or conventional hardware necessary to provide a suitable deterrent to a Rhodesian incursion. It also remained dependent on a relatively small pool of white senior officers and technical personnel. After 1967 Kaunda's government began replacing them with foreign officers on contract, ostensibly to minimise the potential for conflicts of loyalty. Between 1967 and 1970 the majority of officers in the ZDF were seconded from the British Army. In 1971, the ZDF was finally prepared to appoint its first black army and air force commanders. Due to the white community's close ties with Rhodesia and South Africa, white Zambians were subsequently barred from voluntary enlistment and granted a blanket exemption from conscription.

Around September 1967, Kaunda made two requests to the United States for equipment for the Zambian Army, including long-range missile systems, but was rebuffed. More successful were Zambia's attempts to acquire its first combat aircraft, a number of Aermacchi MB-326 and SIAI-Marchetti SF.260s sourced from Italy; the first black Zambian Air Force pilots were trained by Italian instructors between 1966 and 1969. Italy also sold the ZDF helicopters and towed artillery.

Involvement in regional conflicts, 1968–80 During the 1970s, Zambia began providing sanctuary for a number of revolutionary and militant political movements dedicated to overthrowing colonial and white minority rule elsewhere on the African continent. Guerrilla armies based in exile in Zambia included the People's Liberation Army of Namibia (PLAN) and the Zimbabwe People's Revolutionary Army (ZIPRA). These movements ultimately embroiled the ZDF in their own internal power struggles as well as direct clashes with foreign troops carrying out preemptive strikes. In 1968, the ZDF skirmished with Portuguese troops which had pursued a number of Angolan or Mozambican insurgents into Zambia. In September 1975, Zambian troops became locked in a firefight with insurgents of the Zimbabwe African National Liberation Army (ZANLA). The ZDF killed eleven ZANLA insurgents and later expelled that movement from Zambian soil. A year later, nearly two thousand disaffected PLAN insurgents in Zambia launched a mutiny which became known as the "Shipanga Affair". The army was forced to marshal several battalions to subdue the dissidents.

In response to Zambia's increasingly open support for PLAN, South Africa sponsored a force of Kaonde-speaking dissidents under Adamson Mushala, known as the Zambian Democratic Supreme Council (DSC). The DSC maintained a low level insurgency in Zambia's North-Western and Western Provinces. Mushala's guerrillas sabotaged infrastructure, skirmished with the ZDF, and collected intelligence on PLAN movements inside Zambia. They were trained by South African Special Forces and instructors recruited from the Portuguese Directorate-General of Security. In 1973, an army unit killed a hundred of the guerrillas by ambushing them as they attempted to cross the Zambezi near the Caprivi Strip. Mushala was largely inactive until early 1976, when his guerrillas skirmished twice with the ZDF and hijacked an army payroll.

As a result of the new challenges posed by the Mushala insurgency and the presence of foreign militants, the ZDF underwent an extensive reorganisation and adopted a new unified command structure. It was renamed the Zambian National Defence Force (ZNDF) in 1976. A prevailing feature of the new ZNDF was its adoption of a third branch known as the Zambian National Service. The objective of the Zambian National Service was to provide basic military instruction to all Zambian citizens in the event they needed to be mobilised as reservists during wartime. The ZNDF became increasingly politicised, with the ruling United National Independence Party (UNIP) forming party branches in the barracks and introducing a number of political education programs for military personnel. Under the UNIP, the ZNDF was not subject to public audit or parliamentary oversight. This was justified under the pretext that the ZNDF's development was tied to the exigencies of wartime.

Between 1977 and 1980 military tension with South Africa and Rhodesia continued to escalate, resulting in a renewed spate of border incidents. In 1977, the ZNDF bombarded Rhodesian positions near Victoria Falls with rocket and mortar fire. The reasons for the attack were disputed but the Zambian government maintained that the troops involved had been deliberately provoked by Rhodesian forces into firing. Around March 1978, the ZNDF claimed to have been involved in repelling a Rhodesian raid on a ZIPRA training camp. It also assisted PLAN insurgents during a raid on a South African military base in the Caprivi Strip. South Africa retaliated by shelling several ZNDF positions near the border, and Rhodesia began targeting ZNDF outposts. Growing Zambian war weariness was a significant factor in Kaunda's influencing the guerrilla movements in Rhodesia to seek peace, resulting in a negotiated end to that conflict. Kaunda also bowed to South African pressure and ordered PLAN to close its rear base facilities in Zambia by 1979. At the same time, the ZNDF embarked on a 70 million kwacha modernisation program with assistance from the Soviet Union. The Soviets provided the Zambian Army with tanks, wheeled armored vehicles, and technical instruction on especially generous terms; the Zambian Air Force received its first fighter aircraft in the form of a Mikoyan-Gurevich MiG-21 squadron at the same time.

End of the Cold War and reforms In October 1980, two ZNDF officers, Brigadier Godfrey Miyanda and Colonel Patrick Mkandawire were arrested for planning a coup d'état with the support of an exiled Congolese insurgent movement, the Front for Congolese National Liberation (FLNC). The plot involved arming the FLNC with ZNDF weaponry and later providing that movement with rear operating bases in Zambia as a reward for their efforts if the coup succeeded. The ZNDF and the police apprehended the conspirators before they had opportunity to set the coup in motion and later raided the FLNC's base camp, detaining most of the insurgents.

Due in part to the extreme secrecy surrounding the ZNDF's budget and the refusal of the UNIP to allow parliamentary debate on the topic, a number of problems concerning military funding were covered up rather than addressed. For example, the facilities at ZNS training camps were so inadequate that typhoid outbreaks became common among recruits. This was due to lack of funds to filter the camps' drinking water. After a particularly serious typhoid outbreak between 1980 and 1981, the government was forced to suspend and later stop the compulsory national service programme.

In November 1982, the ZNDF killed Adamson Mushala in an ambush outside Solwezi, although his followers continued to carry out operations under the leadership of Alexander Saimbwende. The DSC continued to pose a sufficient threat that an Italian mineral survey team had to be evacuated from Northwestern Province in 1984 after being targeted by the guerrillas. Nevertheless, the erosion of South African support ensured that its forces remained small and poorly armed. Mushala and later Saimbwende turned to ivory poaching to sustain their war effort against the ZNDF.

As the Mozambican Civil War intensified, the ZNDF had to contend with a number of armed incursions by Mozambican National Resistance (RENAMO) insurgents, who raided Zambian border towns in search of food and other supplies. The ZNDF made it a policy to pursue RENAMO into neighbouring Mozambique in hot pursuit if necessary.

In 1988, a second coup d'état attempt was planned, this time by Lieutenant General Christian Tembo and at least three other senior army officers. The conspirators were detained before they could carry it out, but this temporarily jeopardised relations between the Zambian government and the army.

The end of the Cold War brought a number of changes to the Zambian political situation and the ZNDF. The ZNDF remained heavily in debt with the former Soviet bloc for military equipment it had purchased in the 1980s, as well as interest accrued. The army in particular was badly affected by the collapse of its Soviet technical training program, which left much of its heavy weapons unserviceable.