近期，美国前总统唐纳德·特朗普提出“西半球优先”（Western Hemisphere First）的新主张，引发广泛关注。这一政策看似与其早年“美国优先”理念一脉相承，实则反映了其对当前国际格局变化的战略调整。首先，随着中国在拉美地区影响力的持续扩大，包括基础设施投资、贸易合作和外交互动日益频繁，特朗普试图通过强化与美洲邻国的经济与安全联系，遏制中国在“后院”的渗透。其次，面对2024年大选压力，特朗普需要重塑外交议程以吸引保守派选民，强调区域主导权有助于凸显其“强硬外交”形象。此外，“西半球优先”也意在推动北美、中美及加勒比国家形成更紧密的供应链联盟，减少对亚洲尤其是中国的依赖，呼应其一贯倡导的制造业回流和能源自主目标。值得注意的是，该策略并非完全排斥全球参与，而是将战略重心重新聚焦于地理上更近、政治文化更相近的美洲国家，试图构建一个以美国为核心的区域秩序。尽管具体政策细节尚不明确，但这一转向预示着若特朗普再度执政，美国对外政策或将更加区域化、排他化。
Recently, former U.S. President Donald Trump has floated a new policy idea—’Western Hemisphere First’—drawing significant attention. While seemingly an extension of his earlier ‘America First’ doctrine, this shift reflects a strategic recalibration in response to evolving global dynamics. First, as China’s influence in Latin America continues to grow through infrastructure investments, trade partnerships, and diplomatic engagement, Trump aims to counter Beijing’s expanding footprint in what the U.S. traditionally considers its ‘backyard’ by strengthening economic and security ties with neighboring countries. Second, facing the 2024 presidential election, Trump needs to reframe his foreign policy agenda to appeal to conservative voters; emphasizing regional dominance helps reinforce his image as a tough-on-foreign-policy leader. Additionally, the ‘Western Hemisphere First’ approach seeks to build tighter supply chain alliances across North, Central, and Caribbean nations, reducing reliance on Asia—particularly China—and aligning with his longstanding goals of reshoring manufacturing and achieving energy independence. Notably, this strategy doesn’t imply complete disengagement from global affairs but rather a refocusing of strategic priorities on geographically closer and culturally aligned nations in the Americas, aiming to establish a U.S.-centric regional order. Although specific policy details remain vague, this pivot suggests that a potential second Trump administration could pursue a more regionalized and exclusionary foreign policy.
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