民進黨政府之所以沒有採取類似「新加坡模式」（在美中之間維持等距、同時與雙方保持良好關係），而是選擇較為明確的「親美路線」，其背後並不是單純的外交偏好，而是由兩岸結構現實、地緣政治條件以及台灣自身安全需求所共同塑造的結果。

首先，在制度與主權條件上，台灣與新加坡存在根本差異，這也是「新加坡模式」難以直接複製的核心原因。新加坡被中國與國際社會普遍承認為主權國家，因此可以在不涉及主權爭議的前提下，自由調整與美中兩強的關係，採取高度務實的平衡外交。但台灣情況不同，北京長期主張台灣屬於中國的一部分，並以「一個中國原則」作為政治前提。在這樣的架構下，任何被北京視為「政治對等」或「主權模糊化」的路線，都可能被解讀為挑戰其立場。因此，在民進黨的判斷中，所謂「等距外交」並非單純中立選項，而可能意味著必須在主權問題上做出讓步，這使得新加坡模式的基礎條件並不存在。

其次，地緣戰略位置的差異進一步限制了台灣的外交彈性。新加坡位於馬六甲海峽，是全球航運樞紐，但並不直接處於大國軍事對抗的第一線。然而台灣位於第一島鏈核心位置，是美中戰略競爭中的關鍵節點，同時也被中國視為核心利益議題。在這種高強度地緣競爭環境中，「長期維持等距」的空間相對有限，外交選擇更容易被安全壓力所主導。

第三是安全依賴結構，使得親美傾向具有現實基礎。台灣的國防能力長期依賴美國的軍售、軍事訓練合作與情報支持。在民進黨的戰略思維中，如果台灣在美中之間過度搖擺，可能會削弱美國對台灣安全承諾的可信度，甚至增加「被放棄」的風險。因此，強化與美國的連結，被視為維持嚇阻能力與安全保障的重要手段。

第四是全球供應鏈與經濟結構的變化，也強化了這一方向。隨著美中競爭加劇，全球供應鏈逐漸出現「去風險化」與「友岸外包」趨勢，台灣在半導體與高科技產業上的優勢，使其更自然地融入美國、日本與歐洲的技術與產業體系。在這種結構下，減少對中國市場依賴、深化與民主陣營經濟合作，成為政策上的延伸選擇。

不過，這種戰略也伴隨明顯風險。其一是對美國戰略承諾的高度依賴，使台灣在美國內政轉向孤立主義或對中政策調整時，可能面臨不確定性甚至被動局面。其二是兩岸溝通管道的弱化，使危機管理機制不足，一旦發生軍事或海上摩擦，誤判風險會上升。其三是經濟面對中國市場仍具有高度依存度，北京可透過貿易限制、政策工具對台灣施壓，而短期內其他市場難以完全替代。其四則是軍事與社會成本上升，包含國防預算增加、兵役延長與社會安全焦慮的長期化。

整體而言，民進黨的選擇建立在「台灣無法在主權不對等的框架下進行等距外交」這一現實判斷之上，因此傾向透過強化與美國及其盟友的連結來提升安全保障。然而，這種路線雖然提升了外部防衛支持，也同時壓縮了外交彈性，使台灣在大國競爭中更深度嵌入結構性風險之中。

The Democratic Progressive Party (DPP)’s strategic choice not to adopt a “Singapore model” of equidistant engagement between the United States and China, but instead to pursue a more explicitly pro-U.S. alignment, is fundamentally rooted in differences in cross-strait political realities, intensifying geopolitical pressure, and Taiwan’s broader national survival strategy.

To begin with, the feasibility of replicating the “Singapore model” in Taiwan is constrained by structural differences between the two cases. The issue of sovereignty is central. China recognizes Singapore as a fully sovereign and independent state, which allows Singapore to maintain balanced and pragmatic relations with both major powers. In contrast, Beijing claims sovereignty over Taiwan and insists on the “One China” principle as a precondition for official interaction. From the DPP’s perspective, accepting such a framework—such as the “1992 Consensus”—would implicitly legitimize Beijing’s sovereignty claim over Taiwan, which is seen as incompatible with maintaining Taiwan’s de facto autonomy. This creates a fundamentally different diplomatic starting point compared to Singapore’s position.

Geopolitically, Taiwan and Singapore occupy very different strategic environments. Singapore is located along the Malacca Strait and does not sit at the center of a direct territorial dispute between great powers. Taiwan, by contrast, lies within the First Island Chain and is strategically embedded in the security architecture of East Asia, making it a focal point in U.S.–China strategic competition. This geographic reality significantly reduces Taiwan’s ability to maintain long-term strategic neutrality or equal-distance diplomacy.

A third factor is the role of ideological alignment. The DPP increasingly frames Taiwan’s identity in terms of democratic values, particularly as global U.S.–China rivalry has taken on an ideological dimension often described as “democracy versus authoritarianism.” Within this framing, closer alignment with the United States and other democratic partners is seen not only as a security necessity but also as a value-based strategic choice.

From a strategic logic perspective, the DPP’s alignment with the United States can be understood as an attempt at security maximization. Taiwan’s defense capabilities are heavily dependent on U.S. arms sales, intelligence sharing, and strategic signaling. From this viewpoint, any perception of strategic ambiguity or “tilting” toward China could weaken U.S. commitments and increase the perceived risk of abandonment. Aligning more closely with Washington is therefore viewed as a way to reinforce deterrence.

Economically, this approach is also linked to global supply chain restructuring. As production networks shift away from China under policies of “de-risking” and “friend-shoring,” Taiwan has increasingly deepened its integration with the United States, Europe, and Japan. This reduces reliance on the Chinese market while embedding Taiwan more firmly within advanced technology and democratic economic blocs.

However, this strategy also carries significant risks and structural vulnerabilities. One concern is the possibility of “abandonment” or reduced U.S. commitment under shifts in American domestic politics toward isolationism or transactional foreign policy. In extreme scenarios, Taiwan could face pressure in broader U.S.–China bargaining dynamics. More speculative fears in public discourse have even raised concerns about extreme contingency strategies involving Taiwan’s semiconductor industry, highlighting perceived asymmetries in dependency.

Another risk is the erosion of cross-strait communication channels. The absence of formal political dialogue increases the probability of miscalculation during crises, such as airspace disputes or maritime incidents. Without effective crisis-management mechanisms, localized tensions could escalate more rapidly.

Economically, China remains one of Taiwan’s largest trading partners, and Beijing retains the capacity to apply significant pressure through trade restrictions, agricultural import bans, or regulatory measures. While diversification reduces vulnerability, short-term substitution by other markets is limited, meaning economic shocks could be substantial.

Finally, closer strategic alignment with the United States also implies higher long-term defense expenditures and social costs. Increased military spending, extended conscription, and heightened security tensions may place pressure on domestic budgets and contribute to sustained public anxiety over conflict risk.

In summary, the DPP’s strategic orientation is shaped by the assessment that Taiwan cannot operate on the basis of equal sovereign recognition with China, making “neutral balancing” difficult in practice. However, while alignment with the United States provides security guarantees and international space, it also reduces strategic flexibility and exposes Taiwan to the risks inherent in great-power competition.