During the Cold War, the frontier policy of the Republic of China (ROC) government played a pivotal role in regional politics. According to research by Wu Qina of the Institute of Modern History at Academia Sinica, the government at the time employed a series of frontier governance strategies that intertwined the virtual with the real, attempting to consolidate border stability and political legitimacy within the Cold War framework. This history not only reflects the ROC's perceptions of surrounding ethnic groups and geographical regions at the time but also serves as an important background for understanding the evolution of contemporary geopolitics surrounding China. The formulation and implementation of frontier policies have long been constrained by both the international Cold War framework and internal political needs, with their influence extending into discussions on contemporary ethnic relations and regional governance, making them a significant subject in the academic study of modern Chinese history.

Various academic and political resources indicate that the political and economic landscape of East Asia and its surrounding regions is undergoing significant change. The extensive historical archives housed in the Chinese University of Hong Kong Library demonstrate that the evolution of China in history, politics, social sciences, and ethnic geography provides a solid documentary foundation for understanding modern East Asian regional relations. Meanwhile, with the fragmentation of global trade chains and the intensification of great power competition, interactions between East Asia and Central Asia are becoming increasingly frequent. There is a broad consensus that in the current complex international environment, countries in the region are seeking more diverse paths for cooperation to reduce their reliance on single markets or major powers, and to enhance their overall strategic autonomy through cross-regional economic integration.

However, significant differences and uncertainties remain regarding the specific paths and effectiveness of regional integration. According to reports from Asia Government & Politics News Monitoring, Singapore is actively positioning itself as a bridge between ASEAN and Central Asia, attempting to establish closer economic ties between the two regions. Although the political will is clear, analysts point out that trade barriers, underdeveloped logistics infrastructure, and differences in the legal systems of various countries remain the primary challenges to promoting such integration.

At present, whether Singapore's strategy can be effectively translated into substantive trade growth still depends on the internal political stability of Central Asian countries and the degree of coordination among ASEAN member states regarding this strategy; these variables remain inconclusive at this time.

This geopolitical trend has a direct impact on regional industries and policies. With the restructuring of global supply chains, East Asian countries are reassessing their economic and trade ties with Central and Southeast Asia. As a financial and logistics hub, if Singapore can successfully play the role of a bridge, it will help facilitate capital flow and technology transfer within the region, thereby mitigating the economic shocks caused by great power competition. This involves not only the trade policy of a single country but also affects the economic security strategy of the entire East Asian region against the backdrop of the intertwining post-Cold War and new Cold War eras. By strengthening ties with Central Asia, East Asian countries are attempting to open up new market spaces beyond traditional trade routes to cope with increasingly severe global trade protectionism.

In response to these developments, scholars and political observers have offered varying perspectives. Some scholars caution that over-interpreting the strategic significance of the "bridge" role may overlook the inherent contradictions within the region. The legacy of Cold War frontier policies may still influence the decision-making logic of various countries' foreign policies today. Furthermore, Singapore's strategic choices face potential pressure from major powers; how to balance the interests of all parties while maintaining a neutral stance is a major limitation in the implementation of the country's policies. Therefore, while the trend of regional integration is evident, its speed and depth remain constrained by complex geopolitical realities and should not be viewed as an immediate economic windfall.

Subsequent observations should focus on the substantive progress of multilateral trade agreements between ASEAN and Central Asia. First, it is necessary to observe whether Singapore can effectively reduce transaction costs for cross-regional trade through bilateral trade agreements. Second, attention must be paid to how China's infrastructure investments in the region (such as railways and ports) compete or cooperate with Singapore's bridge strategy. Finally, it is essential to continue tracking how Cold War historical research can provide theoretical reflection for contemporary frontier and regional policies. These factors will collectively determine East Asia's position in future global geopolitics and its resilience in responding to trade disruptions and great power competition.