Security Supply,Identity and Capability:The Logic for Collective Actions of NATO's Intervention in the Ukrainian Crisis
The NATO defines the Ukrainian crisis in 2022 as the single most important variable in the security situation in the first half of the 21st Century.While strengthening traditional treaty obligations,it has as well established operational resilience in its intervention in the U-krainian crisis.Based on the eclectic analysis framework from the perspectives of interna-tional political economy,political science and military strategy,this article analyzes the NATO's collective actions through the three factors of security supply as a public good,i-dentity cognition and capability cluster.At the level of security supply,due to the high de-gree of the willingness of the NATO as a whole to supply its public goods,the revenue and expenditure dilemma of collective intervention has been alleviated in spite of the differences in the contribution driving force and efficiency of pure public goods production among its member states.At the level of identity cognition,the NATO has framed Ukraine's partner identity by using identity role symbols and strengthened internal collective decision-making consensus and external intervention resilience.At the capability aggregation level,based on a set of institutional systems built specifically for Ukraine and guided by the US-led con-cept of"smart defense",the NATO has strengthened the strategic reliance,tactical com-patibility and responsibility ambiguity of its member states in intervention operations.The results show that NATO has made changes in external intervention methods and effective-ness while overcoming internal problems,which has had an important impact on both the alliance's transformation and on the Ukrainian crisis.