How can Japan put its past behind? Scholars, journalists, and activists frequently argue that Japan cannot solve its “history problem” unless it follows West Germany's lead in offering contrition for World War II violence. Into this debate, Jennifer Lind's Sorry States: Apologies in International Politics offers an original and provocative contribution. Lind argues that while countries should acknowledge past atrocities, frequent public apologies can be domestically polarizing and diplomatically counterproductive. Sorry States outlines a theory of remembrance and threat perception and tests it in a comparative study of Japanese-South Korean and Franco-German relations after World War II. Its methods, data, and findings will interest not only East Asianists, but also scholars of international reconciliation and security studies more broadly. This roundtable presents three critical essays in addition to a response by the author. They discuss the mechanisms through which historical memory influences perceptions of threat, the relative weight of ideational versus material factors in threat perception, and whether changes in international norms and economic interdependence may increasingly pressure countries to confront past violence.