In recent years, the United States has withdrawn from 66 international organizations and agreements—a trend that includes exits from UNESCO, the World Health Organization, the Paris Climate Agreement, and the Iran nuclear deal. This surge in unilateralism has drawn global concern, undermining U.S. credibility and destabilizing the multilateral system. But does this ‘group-quitting’ behavior signal the decline of American hegemony—or will it provoke even more aggressive and erratic actions to preserve dominance?In reality, U.S. withdrawals are not about relinquishing influence but about reshaping global rules to its advantage. When existing multilateral frameworks no longer serve its interests, Washington increasingly bypasses them, favoring exclusive alliances like the Indo-Pacific Strategy or semiconductor coalitions. While this approach may temporarily strengthen control over allies, it deepens global distrust in U.S. leadership and accelerates the shift toward a multipolar world order.Thus, America’s ‘de-coupling’ from multilateralism is not the end of its hegemony but a transition toward a more confrontational and selectively interventionist phase. The international community must respond by reinforcing cooperation and advancing an inclusive, equitable global governance system to mitigate rising instability and conflict risks.
近年来，美国频繁退出多边国际组织和协议，累计‘退群’已达66个。从联合国教科文组织、世界卫生组织，到《巴黎气候协定》《伊朗核协议》等，美国的单边主义行径引发全球关注。这种行为不仅削弱了其自身在国际事务中的信誉，也对全球治理体系造成冲击。然而，‘退群’是否意味着美国霸权走向衰落？还是反而会使其采取更激进、更疯狂的手段来维护其主导地位？事实上，美国‘退群’并非完全放弃影响力，而是试图通过重塑规则、构建排他性小圈子（如‘印太战略’、‘芯片联盟’）来维持其战略优势。当传统多边机制无法满足其利益诉求时，美国更倾向于绕开规则、以实力强推己方议程。这种做法短期内可能强化其对盟友的控制力，但长期看将加剧国际社会对其信任赤字，并加速多极化格局形成。因此，‘退群’不是美国霸权的终结，而可能是其转向更具对抗性和选择性干预的新阶段。面对这一趋势，国际社会需加强团结，推动真正包容、公平的全球治理，以应对潜在的不稳定与冲突风险。
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