After exposure to combat, the armed personnel’s experience in the combat may affect their relationship with their family members, friends and as well as civilian when they return from combat. Hence, this study investigated the impact of combat exposure on operational management among Nigerian Navy, Nigerian Air force and Nigerian Army, 150 participants comprising 134 males and 16 females were sampled using purposive sampling technique, this technique was used based on the characteristics of the population and the objective of the study, the design of this study was a cross sectional survey design, a One-Way ANOVA was used to test the significance this difference, however, the result of this study shows that participants with high combat exposure obtained a lower total mean of 45.54 (SD=11.71), on operational management when compared with the participants with lower combat exposure who obtained a higher total mean of 48.00 (SD = 12.2) on operational management, however, indicated that the Nigeria navy personnel are less prone to combat stress.