Violent conflict can undermine household income, disrupt livelihood activities, weaken local markets, and increase economic vulnerability in resource-dependent communities. In Rivers State, Nigeria, the relationship between conflict and household welfare is particularly important because insecurity can affect employment, agricultural production, informal trade, transportation, and access to productive resources. This paper examines the economic consequences of violent conflict for household income and livelihood sustainability through a structured review of the thirteen references supplied. It adopts a qualitative, literature-based analytical methodology, combining conflict economics, household resilience, livelihood vulnerability, and socioeconomic disruption within an integrated conceptual framework. The analysis draws on research concerning income shocks and conflict, the economic causes of civil war, household resilience and food security, political instability, and community-level social control. The synthesis identifies several potential pathways through which violence may reduce household earnings: direct destruction of productive assets, interruption of economic activity, increased transaction costs, displacement of workers, and reduced access to markets. It also highlights the possibility that persistent income losses may weaken household resilience and intensify socioeconomic insecurity. However, the supplied literature does not establish the magnitude of these effects specifically for households in Rivers State. Accordingly, the findings are presented as analytical propositions derived from the literature rather than as results of original fieldwork. The paper concludes that sustainable livelihood protection requires conflict-sensitive economic policies, stronger local institutions, income diversification, and improved access to productive resources. Empirical research using household-level data is necessary to quantify the relationships and assess differences across communities.