Agriculture is a vital development strategy for all developing societies, particularly Sub-Saharan Africa (SSA), where countless studies have demonstrated that agriculture is the primary source of livelihood and income for over 70% of the regional population. When addressing issues of war and conflict, agriculture is not a sector that is generally immediately identified but in development as a whole, although its importance is well-recognised. The link between war, conflict, agriculture, and agribusiness has not received enough thoughtful discussion and analysis. Existing studies mainly examine the effects of agricultural outcomes on war and conflict rather than the effects of war on agricultural outcomes. Underpinned by the ideological position that all human activities occur in situated social circumstances, this chapter examines how war and conflict impact the SSA agriculture and agribusiness economy and ultimately impede African development and prospects for industrialisation. Drawing from secondary literature, both grey and academic, this chapter demonstrates how war and conflict generate enormous anti-development costs in Africa, including loss of lives, reduced agricultural productivity, outmigration, human displacement, exposure to diseases, investor despondency, looting of resources, food insecurity, and high price of foodstuffs and farming inputs, among others. With a focus on the entire SSA, the chapter is more of an overview and does not provide in-depth insights for concrete policy formulation. Therefore, future studies need to be country-specific and empirical.