Posttraumatic Stress Disorder (PTSD) is a condition that affects a significant number of veterans. Studies involving veterans with combat-related PTSD indicate that between 4-17% of United States veterans have been diagnosed with PTSD. There United Kingdom counterparts however, have significantly lower number of just 3-6%.[1]

  1. ^ Richardson, Lisa K.; Frueh, B. Christopher; Acierno, Ronald (January 2010). "Prevalence Estimates of Combat-Related PTSD: A Critical Review". US National Library of Medicine. Austrailian & New Zealand Journal of Psychiatry.