discuss the psychological adjustment to combat

I need a  3 to 5 pages (double spaced, Times New Roman) discussing the psychological adjustment to combat as seen from historical experience.

Compare and contrast the elements of Combat Stress Reaction (CSR) and Post Traumatic Stress Disorder (PTSD).

Please make sure to provide sources and sourced definitions of CSR and PTSD. Please include a reference page and title page outside of the 3-5 page requirement.