Background: This article systematically analyzes the extent to which British and French colonial legacies influenced the outbreak of the Cameroonian civil war. Drawing on a theoretical argument that associates the likelihood of civil war with the tensions that arise from the challenges of state formation and state-building, this article revisits the process of state formation in Cameroon and argues that the Cameroonian civil war is an artifact of conflicting British and French colonial legacies.
 Purpose: This research aimed at examining the link between the British and French colonial legacies and the Cameroonian civil war.
 Methodology: This study was desk research. Secondary data sources like journal articles, databases, newspaper articles, blogs, monographs, and other internet materials were consulted. These materials were subjected to content validity before being considered and analyzed qualitatively in the study. Tilly’s warfare theory on modern state formation was used as an explanatory tool to deepen the understanding of the links between war and state formation and to better appreciate the impact of British and French colonial legacies on the processes of state formation and state-building in Cameroon.
 Findings: This paper demonstrated that although governance crises heightened tensions between British and French Cameroons, conflicting British and French colonial legacies constitute the root cause of the civil war. Anglophones have been disgruntled with the relatively low rates of investment in the Anglophone regions, political marginalization, the domination of the French language over the English language in official matters nationwide, and the ‘frenchification’ of the Anglo-Saxon education and judicial systems.
 Unique Contribution to Practice and Policy: This article suggests that it is necessary for peacebuilders and policy experts to address colonial factors when designing policies aimed at resolving the Cameroonian civil war. Dealing only with governance crises without addressing the colonial roots of the problem runs the risk of relapse to conflict in the future. Also, because the British and French colonial legacies are at the center of the crisis, there is a need for Britain and France to revisit their terms of relations with Cameroon, galvanize global resources, and harmonize efforts to influence and foster the resolution of the conflict.