The present work proposes a novel model of justice between sovereign citizen populations. Bracketing the well-covered questions of justice in war and basic humanitarian concerns, I specifically address questions regarding the social justice of international economic and political entanglement. What are the moral implications when a powerful society manipulates the social, commercial and political circumstances of foreign populations? How do we draw a clear normative line that condemns such international actions as economic exploitation and the commercially or politically motivated support of unjust regimes, while neither infringing on conceptions of sovereignty nor disallowing vital constructive international engagement? The work draws heavily on the Rawlsian statist tradition of social justice but, importantly, makes conceptual space for substantial social norms at the international level. Aside from reconciling the meta-ethical justification of global moral norms with traditionally statist Rawlsian theory, the work aims to provide useful conceptual tools for the analysis of real-world cases of international injustice, and demonstrate their application.