Among the primary strategic rationales for U.S. policy engagement in war-torn states has been the assumption that internal violence generates cross-border spillovers with negative consequences for U.S. and global security, among these transnational terrorism, organized crime, and infectious disease. Closer examination suggests that the connection between internal disorder and transnational threats is situation-specific, contingent on an array of intervening factors and contextual conditions. Taken as a cohort, war-torn states are not the primary drivers of cross-border terrorism, crime, and epidemics, nor do they pose a first-tier, much less existential, threat to the United States. Of greater concern are relatively functional states that maintain certain trappings of sovereignty but are institutionally anemic, thanks to endemic corruption and winner-take-all politics. Ultimately, the most important U.S. stakes in war-torn countries are moral and humanitarian: namely, the imperative of reducing suffering among fellow members of our species.