For 200 years some all or some parts of Georgia have been occupied by Russia. The Russian aggression against Georgian civilians covered not only the regions of conflict during and after the wars of 1992 and 2008 but also the regions adjacent to the zones of military conflict. Since 2004 Georgian Armed Forces have participated in International Security Assistance Force in Afghanistan with approximately 14,000 troops. But the Military Mental Health department was established in the Ministry of Defense of Georgia in 2014. This is when the research was performed on the Georgian military personnel (N=2799) who participated in the peacekeeping international mission in Afghanistan in 2014–2015. The purpose of this study was to examine the mechanism of association between PTSD, depression, anxiety and somatic complaints. Based on the results we conclude that PTSD symptom severity appears to be positively associated with depression, anxiety and somatic complaints in a statistically significant sense. Namely, the significant indirect association between PTSD symptoms and somatic complaints is explained by depression and anxiety symptoms as a mediator, but depression symptoms is a slightly stronger mediator than anxiety symptoms in this respect. These findings lead us to formulate several recommendations for early management of trauma. The use of joint questionnaires for PTSD, depression, anxiety and somatic complaints in the early stage after trauma may increase the chance of getting a comprehensive picture of victims’ mental state after exposure. PCL-5 and PHQ show good properties to be used in such kind of situations. Taking into consideration the HPA axis theory of linkage between above mentioned comorbid states, cortisol usage during “golden hours” may also be beneficial for the prevention of depression and anxiety symptoms. Ketamine administration for PTSD management may be beneficial for depression prevention and treatment as well as suicide prevention. As a conclusion, we can state that if we take highly associated comorbid disorders of PTSD into consideration, early administration of trauma-stress related disorders may lead to more comprehensive results in trauma management.