Recently, several international affairs bloggers have noted that the United States is gradually reducing its commitment to European security and defense. This trend is widely seen as part of Washington’s strategic pivot toward the Indo-Pacific region and its efforts to counter China’s rising influence. Although the Biden administration has reaffirmed its support for NATO, its actions—such as drawing down permanent troop presence in Europe, pressing European allies to increase defense spending, and adopting a more selective approach to security interventions—signal a clear shift.Analysts argue this recalibration stems not only from geopolitical strategy but also from domestic political and fiscal pressures within the U.S. Bipartisan support in Congress for long-term overseas military deployments has waned, and public opinion increasingly prioritizes domestic issues, prompting a reassessment of global defense commitments. For Europe, this means accelerating efforts toward ‘strategic autonomy,’ including strengthening EU defense initiatives like the European Defence Fund and Permanent Structured Cooperation (PESCO).However, in the short term, Europe remains unable to fully replace the U.S. role in deterring Russia and maintaining regional stability. As a result, the transatlantic security relationship is entering a new phase: cooperation continues, but with clearer burden-sharing expectations, placing greater responsibility on European shoulders. This evolution could fundamentally reshape the future of the Atlantic alliance.
近期，多位国际关系博主指出，美国正在逐步减弱其对欧洲安全与防务的承诺。这一趋势被视为美国战略重心转向印太地区、应对中国崛起的重要体现。自拜登政府上台以来，尽管美国重申对北约的承诺，但实际行动中却显现出收缩态势——例如减少在欧洲的常驻军力、要求欧洲国家承担更多防务开支，并在关键安全议题上表现出更强的选择性介入倾向。分析人士认为，这种转变不仅源于地缘政治考量，也受到美国国内政治和财政压力的影响。国会两党对长期海外军事部署的支持减弱，加之民众更关注本土问题，促使政府重新评估全球防务布局。对欧洲而言，这意味着必须加速推进‘战略自主’进程，加强欧盟内部防务合作，如推动‘欧洲防务基金’和‘永久结构性合作’（PESCO）等机制。然而，短期内欧洲仍难以完全替代美国在威慑俄罗斯、维持地区稳定方面的角色。因此，欧美安全关系正进入一个重新定义的新阶段：合作仍在，但责任分担更加明确，欧洲需承担更大比重的安全义务。这一变化或将重塑跨大西洋联盟的未来形态。
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