Abstract: This study examines theoretical perspectives on post-war consequences settlement within the field of
peace studies and international relations, with particular reference to the case of Vietnam–United
States relations. Drawing on the concept of “positive peace” proposed by Johan Galtung, the paper
argues that addressing war legacies extends beyond the cessation of violence to include the elimination
of structural inequalities and the reconstruction of social trust. The research systematizes four major
approaches: humanitarian–ethical, legal–political, reconciliation–constructivist, and developmental–
cooperative perspectives. Methodologically, the study employs qualitative analysis, combining
theoretical review with case study analysis of Vietnam–United States post-war cooperation. The
findings suggest that effective post-war settlement requires a multidimensional approach integrating
moral responsibility, institutional reconstruction, identity transformation, and sustainable
development. The Vietnam–United States case demonstrates how cooperation in areas such as Missing
in Action (MIA) accounting, dioxin remediation, and support for war victims has contributed not only
to addressing material consequences but also to rebuilding trust and reshaping bilateral relations. The
study highlights that post-war settlement can function as a mechanism of constructive engagement,
transforming historical conflict into a foundation for long-term cooperation. This research contributes
to literature by linking theoretical frameworks with empirical evidence, offering insights into how
post-conflict societies can achieve sustainable peace through integrated approaches
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