國際關係主流理論研究的是多邊關係，但是多邊關係得以運作，其前提在於，當多邊關係受限時，可仰賴雙邊關係加以維繫或超越，使多邊關係免於遭到直接挑戰。本文主張將雙邊關係做為國際關係研究途徑加以探究，並以戰後英國因實力變化而選擇轉向雙邊為個案。出於避免一夕崩壞及維護利益的設想，孱弱的大英帝國在戰後選擇向雙邊主義靠攏，美中兩國成為優先考量。即便這兩組雙邊關係間存在矛盾，卻是英國勉強藉由兩組雙邊關係維繫既有多邊框架，再行逐步調整，進而在戰後世界站穩腳跟的機制。 ..

Mainstream IR theories are typically multilateral. However, for any multilateral frame or value to last, bilateral relations must be able to resolve conceivable limitations. Thus, bilateral relations should be intrinsic to IR theorization. We use the United Kingdom in the aftermath of WWII as our case. The UK managed bilateral relations with the United States and China as ways to overcome its decline after the war. The bilateral relations transcend the multilateral frame and value. Accordingly, the UK’s two bilateral re..

在國際關係的研究領域中，不論是國家中心論或是以體系為主的體系理論，都以國家為研究的客體。伴隨著全球化浪潮，「全球治理」概念的出現，表明以國家為主的國際政治體系已無法解決國際環境的複雜變化，須藉助許多跨國性次級團體來共同治理。有鑑於此，新現實主義、新自由主義、 與建構主義中以國家為給定對象的國際關係主流理論，遇到解釋上的局限， 需要建構一套新的本體論與知識論，俾有效解釋在國際政治中逐漸呈現的多元行為體治理現象。本文認為國際關係理論面臨三個問題的挑戰:一、如何解..

Theories of international relations(IR), whether through state-centric or systemic approach, put states as centers of research objectives. With trending globalization, the advent of the global governance concepts manifests that a state-focused international political system without transnational sub-political groups has failed to respond to complex changes in the international environment. Accordingly, this challenges neo-realism, neo- liberalism, and constructivism, which focus on the state-centric approach and experience ex..