Youth constitute over 60 percent of Nigeria's population, yet their influence on political decision-making remains relatively limited. The increasing incidence of political defection (cross-carpeting) among young politicians has raised concerns about its implications for democratic consolidation and political stability. This paper examines the trends, drivers, and implications of party defection on peace, security and development in Nigeria . The study is anchored on Elite Theory and Clientelism Theory, which explain how elite domination, patronage networks, and political incentives shape the behaviour of young political actors. Using a qualitative methodology based on documentary analysis of scholarly publications, policy documents, newspaper reports, and electoral records, the study investigates the factors influencing youth participation and defection in party politics. Findings reveal that youth defection is primarily driven by patronage politics, weak party ideology, economic insecurity, limited opportunities for political advancement, and manipulation by political elites. The study further finds that while digital activism and youth mobilization have expanded political participation, structural barriers continue to constrain meaningful youth influence in political decision-making. The paper concludes that persistent youth defection undermines party institutionalization and democratic consolidation in Nigeria. It recommends strengthening internal party democracy, promoting ideological party development, creating sustainable avenues for youth political inclusion, and implementing reforms that reduce the influence of patronage politics.
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