The purpose of this study is to explore key elements to develop a session structure model of military leadership coaching that reflects the specificity of the military so that Army leaders can develop proper leadership through leadership coaching. To this end, the focus was on constructing a new coaching session structure model by analyzing the specificity of the Army's leadership coaching environment and the universality of general coaching session structure model, reflecting the considerations needed to achieve the goals of leadership coaching. First, in order to examine the specificity of Army leadership coaching, the procedure and purpose of Army leadership coaching, and the linkage of Army core values were investigated to derive the factors to consider the Army leadership coaching session structure model. Next, in order to derive the universality of general coaching, a common basic structure of the coaching session structure model was derived by comparing and analyzing the existing coaching session structure model. Finally, by reflecting the results derived, a coaching conversation model suitable for the military leadership coaching environment was constructed. The results of the study are as follows. First, considering the specificity of military leadership coaching, goal-oriented dialogue, expansion of thinking, formation of trust relationships, and specific action plans were derived. Second, the basic structure of the coaching conversation model was derived in the order of relationship setting, goal setting, current situation recognition, alternative selection, and execution. Third, the 'Trust-ARMY model' could be constructed as a result of reflecting the specificity of the derived military leadership coaching and the common elements of the existing coaching session structure model.