強制外交（coercive diplomacy）的概念在一九七０年代由學者Alexander L. George首度提出，主張強制外交應屬於防守型的危機管理（defensive crisis management），亦有別於一般所謂的嚇阻（deterrence）與壓制（compellence）等策略。施行強制外交時，相關決策者透過威脅使用武力，或使用有限度的武力，以勸說對手停止或放棄現正從事的行動，並防止危機情勢的升高，及避免戰爭的發生。冷戰期間，美、蘇兩國的領導人對於該一策略的運用極為廣泛與普遍，甘迺迪政府對於古巴飛彈危機的處理便是著名的案例。冷戰結束，國際關係進入所謂的後冷戰時期，面對區域衝突、人道危機和恐怖主義威脅等問題，強制外交更常被相關決策者和國際組織所施行、採用，亦多次在國際間重大的衝突與危機處理過程中扮演著關鍵的角色，並展現其重要性和多元化的一面。因此，鑑於強制外交對於後冷戰時期之國際危機處理和衝突解決的重要性和必要性，本研究旨在透過強制外交相關理論的介紹與整理，以及後冷戰時期強制外交相關個案的研究分析，總結歷史的經驗與教訓，深入探討其施行現況與成效，並提出具體之研究發現與政策建議。期盼所得之研究成果能使吾人對於該策略有更深一層的認識與了解。 關鍵詞：強制外交、壓制、危機管理、後冷戰時期、區域衝突、人道干涉、反恐行動 / In the 1970s, Alexander L. George first introduced and defined the concept of coercive diplomacy. According to George, he claims that coercive diplomacy is a strategy of defensive crisis management. Besides, coercive diplomacy is also different from the strategy of deterrence or compellence. When policymakers and political elites decide to manipulate coercive diplomacy, they should employ threats and / or limited force to persuade opponents to call off or undo adverse actions, which are thought aggressive. Furthermore, the purpose of using coercive diplomacy is to prevent crisis situation from escalating or causing wars. During the Cold War era, leaders of United States and Soviet Union used this strategy intensively. The Cuban missile crisis in 1962 can also be thought as a famous case of successful coercive diplomacy. When international relations enters into the post-Cold War era, coercive diplomacy still plays as important role in crisis management and conflict resolution. Policymakers of countries and international organizations, like the United Nations and the NATO, prefer to use coercive diplomacy to deal with regional conflicts, humanitarian intervention, and counterterrorism. Coercive diplomacy also demonstrates its necessity and significance of solving these problems. In order to give us a comprehensive understanding of coercive diplomacy, this thesis focuses on theories of coercive diplomacy and case studies, especially the experiences after the Cold War. Then, in final chapter of this thesis, the author generalizes lessons and experiences come from the cases analyzed and studied. In addition, the author also tries to make conclusions about the efficacy of coercive diplomacy and thus tries to offer some guidelines for policymakers. Keywords: coercive diplomacy, compellence, crisis management, post-Cold War era, regional conflicts, humanitarian intervention, counterterrorism