The goal of this trial is to test how augmented reality exposure therapy (ARET) may potentiate the effects of traditional exposure therapy administered to U.S. military personnel diagnosed with PTSD. 40 adult males and females over the age of 18 that have served, or are currently serving, in the U.S. military, with a current diagnosis of PTSD, will be recruited. Participants will be randomized into two groups: 20 participants will receive ARET + traditional ET, with the remaining 20 to receive traditional ET only. The main questions this trial aims to answer are: * what are the different clinical and psychosocial functioning outcomes between veterans/active-duty personnel with PTSD who receive ARET + traditional ET versus traditional ET only * what are the differences in acceptance and satisfaction of treatment, between ARET + traditional ET and the traditional ET-only group