Koalou

In 1914 France declared that the border between Burkina Faso (then known as Upper Volta) and Benin followed the Pendjari river. According to this definition, the area would be a part of Burkina Faso. However, a document signed by a colonial administrator in 1938 placed the area within the boundary of Benin.[3]

In 2005 the two countries came close to conflict when the headmaster of a school built by Burkina Faso in the contested zone was expelled by Benin. The tension was so great that a meeting between the two to delimit the border was cancelled.[3]

In 2007 tensions flared up once again when an inhabitant of the contested area was sent to prison in Benin where he later died.[3]

On 7 March 2008, the two countries agreed to meet after local officials in the area accused unidentified security forces of harassing people living there. In order to prevent security breaches and protect the civilians in the area the two agreed to establish joint border patrols. They also chose to settle the issue peacefully by removing all displayed symbols of sovereignty from both countries.[3]

In 2009 the area was given a special status as a neutral zone until a decision could be made by the International Court of Justice. Until then, it was placed under the administration of the Joint Committee for the Concerted Management of the Kourou/Koalou Area (COMGEC-K).[2]

In 2018 Burkinabe forces deserted the area leading to a lack of security as Beninese forces had also left to avoid causing a diplomatic incident. The hole left by the security forces caused the area to become lawless and eventually an epicentre of an illicit cross-border fuel trade from the coast to the Sahel. Other goods such as cigarettes, motorbikes, food products, and sometimes arms are traded in the area as it is sometimes cheaper than at home. It has also allowed for Al-Qaida-affiliated groups to operate gold mines in the area and tax smugglers.[4]

On 26 October 2022, suspected JNIM fighters robbed travellers from Benin of their belongings. This led to Beninese police to intervene and secure the area.[7]

On 21 February 2023, Beninese troops launched an anti-terrorist operation into the area to crackdown on the smuggling and terrorist problem. However, it did not come without controversy from Burkina Faso.[6]