Constantly analyzed in scientific, theoretical, and empirical studies, the “ Asian Mediterranean” region has received renewed attention as a consequence of the rise of China. China’s emergence combines its strong economic dynamic with increased confidence, positioning it as a potential regional hegemony. On that conceptual basis, this study aims to answer whether a power transition has already occurred in the South China Sea and how the process of a regional hegemonic transition took place. Through an examination of the instruments used by the United States and China to exercise power, articulated with the power transition theory, it establishes that a transition in the South China Sea dispute could have already occurred. However, the study disclaims that Beijing’s evolution and sudden change of behavior aim to overthrow the U.S. global leadership but rather intends to reclaim its position of regional hegemony.