In this concluding chapter, we delineate theoretical insights drawn from relevant comparisons among the case studies and suggest policy recommendations. Specifically, we reassess the three hypotheses, identify and map relevant patterns from the different case studies across several regions of the world, offer several policy recommendations based on these patterns, and draw some general conclusions. In addition to the observable patterns as related to type of borders, political and institutional arrangements, and political economy, in the perusal of the eleven case studies we identified two additional elements that further explain the reality of peaceful borders and illicit transnational flows: the geopolitical location of regions and subregions, as hubs for transnational illicit flows; and the legacy of civil and intermestic wars. In the last part of the chapter, we suggest several policy recommendations: (1) be aware of the normative dilemmas of human security; (2) increase cooperation and develop effective mechanisms of governance at all the possible levels; and (3) promote and prefer peace rather than war, but be aware of its potential unintended consequences.