South Korea has emerged as a new middle power playing a significant role in a wide range of important global issue areas and supporting liberal international order with its leadership diplomacy. The growing role played by new powers like Korea calls into question the prevailing view that global governance is polarized with emerging powers challenging the liberal international order established by the United States and its European allies after World War II. As the case of Korea shows, large developing countries like the BRICS are not the only emerging powers active in global governance. Newly...