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This book discusses The Significance of Military Cohesion, Measuring Military Power, Why Soldiers Fight, Characteristics of a Cohesive Army, Organizational Characteristics, Small Group and Unit Characteristics, and Leadership Characteristics. The Author Compares Cohesion in the North Vietnamese, US, Soviet, and Israeli Armies and Measures Societal Group Effects on Cohesion. Leadership in Cohesive Units is also very important.
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Showalter et al. (1986) studied this question.
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