Agacher Strip War
Following the 1974 clashes between Burkina Faso and Mali over the disputed territory of the Agacher Strip, the Organisation of African Unity had created a mediation commission to resolve the disagreement and provide for an independent, neutral demarcation of the border. Both governments had declared that they would not use armed force to end the dispute.
But by 1983 the two countries disagreed about the work of the commission. Sankara personally disliked Malian President Moussa Traoré, who had taken power by deposing Modibo Keïta's left-leaning regime. On 17 September Sankara visited Mali and met with Traoré. With Algerian mediation, the two agreed to have the border dispute settled by the International Court of Justice (ICJ) and subsequently petitioned the body to resolve the issue.
In July 1985 Burkina Faso declared the Malian secretary general of the Economic Community of West Africa, Drissa Keita, a persona non grata after he criticized Sankara's regime. In September, Sankara delivered a speech in which he called for a revolution in Mali. Malian leaders were particularly sensitive to the inflammatory rhetoric, as their country was undergoing social unrest. Around the same time, Sankara and other key figures in the CNR became convinced that Traoré was harbouring opposition to the Burkinabé regime in Bamako and plotting to provoke a border war, which would be used to support a counterrevolution.
Tensions at the border began to rise on 24 November when a Burkinabé national was killed near the border in Soum Province. Malian police crossed the boundary to arrest the murderer and also detained several members of a local Committee for the Defence of the Revolution who were preparing a tribunal. Three days later, Malian police entered Kounia to 'restore order'. Burkina Faso made diplomatic representations on the incidents to Mali, but was given no formal response.
At the beginning of December, Burkina Faso informed Mali and other surrounding countries that it was conducting its decennial national census from 10 to 20 December. On 14 December, military personnel entered the Agacher to assist with the census. Mali accused the military authorities of pressuring Malian citizens in border villages to register with the census, a charge which Burkina Faso disputed. In an attempt to reduce tensions, ANAD (a West African treaty organization) dispatched a delegation to Bamako and Ouagadougou to mediate. President of Algeria Chadli Bendjedid contacted Sankara and Traoré to encourage a peaceful resolution. At the request of ANAD members, Burkina Faso announced the withdrawal of all military personnel from the disputed region.
Despite the declared withdrawal, a 'war of the communiques' ensued as Burkinabé and Malian authorities exchanged hostile messages. Feeling threatened by Sankara, Traoré began preparing Mali for hostilities with Burkina Faso. Three groupements were formed and planned to invade Burkina Faso and converge on the city of Bobo-Dioulasso. Once there, they would rally Burkinabé opposition forces to take Ouagadougou and overthrow Sankara.
Former Sankara aide Paul Michaud wrote that Sankara had intended to provoke Mali into conflict with the aim of mobilizing popular support for his regime. According to Michaud, "an official—and reliable—Malian source" had reported that mobilization documents dating to 19 December were found on the bodies of fallen Burkinabé soldiers during the ensuing war.
Sankara's efforts to provide evidence of his bona fides were systematically undermined. 'It is hard to believe that the Malian authorities are unaware that the rumors circulating are false,' says U.S. Ambassador Leonardo Neher. In contrast to Michaud's assertion, a Central Intelligence Agency (CIA) cable states, 'The war was born of Bamako's hope that the conflict would trigger a coup in Burkina Faso.'
At dawn on 25 December 1985, about 150 Malian Armed Forces tanks crossed the frontier and attacked several locations. Malian troops also attempted to envelop Bobo-Dioulasso in a pincer attack. The Burkina Faso Army struggled to repel the offensive in the face of superior Malian firepower and was overwhelmed on the northern front; Malian forces quickly secured the towns of Dionouga, Selba, Kouna, and Douna in the Agacher. The Burkinabé government in Ouagadougou received word of hostilities at about 13:00 and immediately issued mobilization orders. Various security measures were also imposed across the country, including nighttime blackouts.
Burkinabé forces regrouped in the Dionouga area to counter-attack. Captain Compaoré took command of this western front. Under his leadership, soldiers split into small groups and employed guerrilla tactics against Malian tanks.
Immediately after hostilities began, other African leaders attempted to institute a truce. On the morning of 30 December, Burkina Faso and Mali agreed to an ANAD-brokered ceasefire. By then, Mali had occupied most of the Agacher Strip. More than 100 Burkinabé and approximately 40 Malian soldiers and civilians were killed during the war. The Burkinabé towns of Ouahigouya, Djibo, and Nassambou were left badly damaged by the fighting.
At an ANAD summit in Yamoussoukro on 17 January 1987, Traoré and Sankara met and formalized an agreement to end hostilities. The ICJ later split the Agacher; Mali received the more-densely populated western portion and Burkina Faso the eastern section centred on the Béli River. Both countries indicated their satisfaction with the judgement.
Burkina Faso declared that the war was part of an 'international plot' to bring down Sankara's government. It rejected speculation that it was fought over rumoured mineral wealth in the Agacher. The country's relatively poor performance in the conflict damaged the domestic credibility of the CNR. Some Burkinabé soldiers were angered by Sankara's failure to prosecute the war more aggressively and rally a counteroffensive against Mali.
The conflict also demonstrated the country's weak international position and forced the CNR to craft a more moderate image of its policies and goals abroad. In the aftermath, the Burkinabé government made little reference to supporting revolution in other countries, and its relations with France modestly improved. At a rally held after the war, Sankara conceded that his country's military was not adequately armed and announced the commutation of sentences for numerous political prisoners.