The transnational nature of security threats in the 21st Century are such that interorganizational cooperation is necessary to effectively combat these threats. This article explores a key organization, the Multinational Joint Task Force (MNJTF), charged with curtailing the threat posed by terrorism in certain parts of the Sahel and West Africa. Using the theoretical framework of Walt’s balance of threat and a combination of data obtained from ACLED and expert interviews, the article argues that the MNJTF has not been successful in achieving its mandate. This could be attributed to five lapses in the restructuring of the organization in 2015 to combat terrorism. The article concludes that for interorganizational security cooperation to be successful, the allies must equally acknowledge that they face the same existential threats which will make them commit to the demands of the organisation.