One potential is that China would progressively dominate regional institutions, reduce American influence, and the key function of the bilateral security pacts led by the United States. This may happen if regional bodies, excluding the United States, develop as serious regional bodies. This is not a probable result. In East Asian regionalism, America’s allies are unlikely to tolerate this development. An increasing plurality of regional groups and associations is more likely to evolve in East Asian regionalism. This multi-layered regionalism already characterizes the area. This multi-layered regionalism already characterizes the region. There is no one regional organization.