"The post-Vietnam–era military scholars began articulating a view of cohesion that emphasizes the importance of task cohesion. For example, an influential definition of military cohesion was offered by Wm. Darryl Henderson in his 1985 book, Cohesion: The Human Element in Combat. His vision is clearly more in accord with task cohesion than social cohesion: Cohesion exists in a unit when the day-to-day goals of the individual soldier, of the small group with which he identifies, and of unit leaders, are congruent— with each giving his primary loyalty to the group so that it trains and fights as a unit with all members willing to risk death and achieve a common objective. (Henderson, 1985, p. 4)"