Following the end of the Cold War and the formation of a uni-multipolar order led by the United States,emerging powers have shifted from direct military confrontation(hard balancing)to more indirect and subtle strategies,known in international relations literature as soft balancing BRICS, as the most prominent manifestation of these emerging powers,seeks to challenge the power structures established under American leadership after World War II.It does so by creating parallel financial institutions like the New Development Bank(NDB)and the Contingent Reserve Arrangement(CRA),striving for de-dollarization in trade,and coordinating diplomatically in international forums. Instead of direct military opposition,BRICS members have adopted soft balancing strategies, including the establishment of parallel financial and political institutions, coordinated diplomacy,and an emphasis on a particular interpretation of international law rules.This article uses a descriptive-analytical method to answer the question of to what extent BRICS actions are legitimate and legal within the framework of international law,and how do these actions affect various aspects of American hegemony?BRICS's soft balancing strategy, while operating within the boundaries of international law and leveraging the principle of state sovereignty,is increasingly challenging the legitimacy of US hegemony and gradually eroding its foundations by creating institutional and financial alternatives.This paper will analyze the legitimacy of establishing new financial institutions,the compliance of the de-dollarization policy with the rules of the World Trade Organization and the International Monetary Fund,and the legal dimensions of the group's diplomatic coordination. Finally,the article will assess the realworld impacts of this strategy and the future outlook for the international order in light of this new dynamic.