Economic reforms policies and programmes are internationally designed approaches by the World Bank and I.M.F with the aim to reorganize and reposition the economies of the developing and underdeveloped countries and the Third Word towards re-servicing their economy by creating employment and reducing poverty, Nigeria inclusive. Using a combination of the primary and the secondary methods of data collected, the study distilled thatthose World Bank and IMF programmes and their monetary policies- SAP, deregulation, and liberalization instead elevate the level of poverty, unemployment, inequality, providing the context for youth idleness and attendant implication on national security. Equally, the authors used underdevelopment theory as the theoretical base for the study to assess the nexus between economic reform poverty vis-a-vis national security in Nigeria. The paper confirmed that failure of previous attempts at poverty alleviation and reform policies on economy largely contributed towards hiking the tempo of insecurity, thereby rendering Nigeria as vulnerable and easy prey for indoctrination of youths into terrorismwhich in turnaffected the efficient sustenance of national security of the country. The study recommendedthatthe Federal government of Nigeria should learn from the Asian Tigers by designing and adopting a manual for NigeriaÍs economic emancipation taking into consideration of domestic factors as pillars for thesustenanceofsocio-economicdevelopmentthat are in tandem with NigeriaÍs national security structures.