Middle-power diplomacy faces a sharp ideological split in 2026 as nations navigate rising superpower unilateralism.
The Clash Over Middle-Power Utility and Solidarity
The debate intensified months later when U.S. Deputy Secretary of Defense Elbridge Colby publicly dismissed the concept. According to Colby, defending the U.S.-led alliance system leaves no functional room for distinct coalitions of middle powers with diverging national interests. Critics of middle-power theory routinely echo Colby’s skepticism, arguing that shared medium-sized status fails to bridge vast economic and geopolitical divides, and that middle powers cannot rewrite international rules without superpower backing.
Proponents counter that middle-power coalitions do not aim to overturn the global order single-handedly.
South Korea’s Strategic Dilemma as a Self-Defined Middle Power
South Korea cannot avoid this ongoing global debate, having officially embraced the middle-power label during the administration of former President Lee Myung-bak nearly two decades ago. Subsequent administrations across four presidential successions maintained this identity. The administration of South Korean President Lee Jae-myung currently frames its foreign policy around transitioning an “indispensable Republic of Korea” into a “global responsible power.”
The urgent task requires defining clear responsibilities and burdens commensurate with middle-power status. Without a coherent vision, Seoul risks inconsistencies across crucial foreign policy domains, spanning North Korean security, the U.S. alliance, bilateral ties with neighboring powers, trade investments, economic security, official development assistance, human rights, environmental policy, and digital artificial intelligence governance.
Frequently Asked Questions
What triggered the renewed 2026 debate over middle powers?
The debate ignited in January 2026 when Canadian Prime Minister Mark Carney called for middle-power solidarity at the Davos Forum, a proposal subsequently challenged by U.S. defense official Elbridge Colby over doubts regarding coalition feasibility.

When did South Korea first adopt the middle-power designation?
South Korea formally adopted the middle-power identity during the administration of President Lee Myung-bak almost twenty years ago, sustaining the framework through four subsequent presidential terms.