This study is evaluating the efficacy of virtual reality exposure therapy (VRET) by comparing
it to prolonged exposure therapy (PE) and a waitlist(WL) group for the treatment of post
traumatic stress disorder (PTSD) in active duty (AD) Soldiers with combat-related trauma. The
investigators will test the general hypothesis that 10 sessions of VRET or PE will
successfully treat PTSD, therapeutically affect levels of physiological arousal, and
significantly reduce perceptions of stigma toward seeking behavioral health services.