In an era characterized by both regional fragmentation and global integration, the interplay between regional organizations is pivotal in shaping international dynamics. This paper examines the evolving landscape of regional cooperation, focusing on the expansion of BRICS+ and its recent inclusion of Gulf Cooperation Council (GCC) members such as the UAE and potentially Saudi Arabia. BRICS+ distinguishes itself by embracing broad interregional goals, while the GCC acts as a crucial link between the West and the East. Both the GCC and BRICS+ have established significant relationships with other regional organizations. By leveraging its unique position within BRICS+ and strong ties to the GCC, China offers a case study of how major powers can navigate the complexities of globalization to promote a more integrated global order. This study analyzes the opportunities, challenges, and implications of this interregional cooperation, emphasizing its potential to contribute to global governance and regional integration.