This study intends to observe the effects of communication types, stress coping patterns, and
ego-resilience of the primary grade executives serving their military service for one's adjustment to the
military service. Research participants are 305 primary grade executives of the S Force. The following
paragraphs summarize the study results. First, the participant's length of military service correlate with
one's level of adjustment to the military service. Participants who served over two years showed higher
level of adjustment than those who served less than two years. Second, sergeants's adjustment to the
military service showed relevant difference between functional communication and unfunctional
communication type, and adjustment to the military service was relevantly higher from functional
communication type. Third, communication type, stress coping method, and ego-resilience all showed
direct relation with adjustment to the military service. Most of all, ego-resilience has a static relation
with adjustment to the military service, and it showed greatest effects compared to other factors.
Participants who have higher ego-resilience adjusted better to the military service than those who have
lower ego-resilience.