In a world shaped by rising insecurity and economic uncertainty, governments face a difficult choice: how to defend their citizens while safeguarding the foundations of long-term prosperity. Across Sub-Saharan Africa, this challenge is especially urgent. Terrorist violence, insurgency, and fragile institutions place heavy demands on national budgets, often compelling leaders to direct substantial resources toward military protection. Yet every allocation toward defense carries consequences for schools, hospitals, infrastructure, and opportunity. This volume explores the delicate balance between security spending and economic growth in one of the world’s most promising yet vulnerable regions. It examines how persistent attacks reshape public priorities, inuence investment climates, and test the capacity of states to maintain both order and development. While some nations continue to expand their economies despite sustained violence, others experience slowed progress as instability disrupts trade, displaces communities, and strains public nances. Rather than portraying defense spending as inherently benecial or harmful, this work presents a nuanced view of security as both a safeguard and a burden. Protection may create the stability necessary for commerce and confidence, yet excessive or poorly managed spending can weaken long term prospects. Clear, accessible, and grounded in contemporary realities, this volume offers insight for policymakers, scholars, and development partners seeking to understand how choices made in times of threat shape economic futures. It is a timely exploration of what it truly costs to protect a nation and what it takes to build lasting prosperity.