The BRICS nations Brazil, Russia, India, China, and South Africa remain a formidable force in global politics in the 21st century. This article discusses the way that BRICS challenges the Western-dominated Liberal International Order (LIO), not only economically but also politically, providing alternative perspectives on how the world should be governed. The article does not consider BRICS as an economic bloc but rather its joint effort to reform international norms, institutions, and power relations. This paper is based on previous studies that emphasized a more multipolar and inclusive vision of global justice by BRICS, but this paper concentrates on BRICS’ engagement with Western powers. It argues that the rise of BRICS has revealed and solidified the weaknesses that the LIO already has, including institutional strain, norm conflicts, and changing global alignments. This paper reviews conflicting ideas of sovereignty, development, and governance through political economy, IR theory, and empirical evidence. It concludes that the new global order will not simply redistribute power but will develop by the continued negotiation, selective reform of the old institutions, and the rise of the Global South.