“积极防御”是新中国建立后,党中央基于对国内外现实情况正确认识和客观分析制定的战略方针。抗美援朝战争对“积极防御”战略方针的确立具有深远影响,并为其“后发制人”战略原则和“持久作战”战略手段的确立提供了实践参考。 “Active Defense ” is a strategic guideline formulated by the Party Central Committee on the basis of a correct understanding and objective analysis of the realities at home and abroad after the founding of new China. The War to Resist US Aggression and Aid Korea has a profound impact on the establishment of the strategic guideline of “active defense” and provides a practical reference for the establishment of its “post-issuer” strategic principle and the “long-term combat” strategic means.