As globalization accelerates, the disparities in wealth, rights, and life chances among nations and peoples have become not only more visible but also more structurally entrenched. By foregrounding questions of fairness, responsibility, and moral obligation, global justice enables scholars and policymakers alike to assess whether existing global arrangements distribute benefits and burdens in ways that are ethically defensible. In this sense, the study of global justice is indispensable for identifying realistic and normatively grounded pathways toward a more just world order. At its core, global justice addresses the moral obligations that individuals, states, and other political actors owe to one another across borders. It compels us to move beyond nationalism and to recognize that many of the most pressing challenges of our time—persistent poverty, human rights violations, climate change, environmental degradation, and forced displacement—are fundamentally transnational in origin and impact. These problems cannot be adequately understood, let alone resolved, within the confines of individual nation-states. A global justice perspective therefore insists on shared responsibility and collective action, while also interrogating asymmetries of power, capacity, and historical accountability that shape global outcomes.