2014 年 2 月爆發的烏克蘭危機是歐洲當前最嚴肅的區域安全挑戰，這不僅是因為烏克蘭危機使得歐洲再度出現區域衝突情勢，同時也因列強介入而使得地緣競爭強度漸趨激烈。學界多探討烏克蘭危機及其背後的歐洲地緣競爭意涵，然較少從烏克蘭內部安全策略選擇的角度分析，本文嘗試補充此等觀點，從內部因素出發，分析烏克蘭內部政治如何影響區域危機的發生。 本文認為:第一，烏克蘭受制於強權競爭，使烏克蘭與其他中間地帶國家，都必須在左右強權互動格局下進行回應與策..

Ukraine is situated strategically between EU and Russia. The outbreak of the Euromaidan Revolution(February 2014)designates the advent of severe geopolitical competition in the European continent. Though it is crucial to understand this competition through the lens of great power rivalry, small and medium countries that exert certain leverages between great powers also warrant our attention. We argue that the domestic approach is suitable to explain the transformation of Ukraine’s security choices. We first develop an a..