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..

美國為因應後冷戰時期國際安全環境與威脅的改變，至 1996 年止已執行多次全面性的兵力結構檢討。然而，國會認為國防部僅考量維持現有規模與預算，而非依外在安全環境與威脅的改變來調整所需兵力結構。因此，國會為因應二十一世紀的威脅及確保美國國家安全利益，通過「1996 年軍力結構總檢法案」，要求國防部配合總統任期執行「四年期國防總檢」及將評估重點予以法制化。鑑於國內學術界對美國「四年期國防總檢」的論述均以報告內容為重點，故本文將從理性決策與戰略規劃面向，來評析美國..

In response to the changes of international security environment and threat in the post-Cold War era, the United States had conducted various comprehensive assessment of its force structure in 1990-1996 periods. However, the Congress pointed out the Department of Defense intended to realign the force structure just from the view of keeping forces size and defense budget and not from the changes of security environment and threat. In order to meet the threats and protect the U.S. national security interests in the twenty-first..