From the blog PTSD: A Soldiers Perspective: excerpts from a post,
Today 15% (300,000; Rand, 2008) of our soldiers and veterans have been diagnosed with PTSD and this seems like it may be a smaller number compared to other wars. 30% PTSD rates in Vietnam, 15% to 25% of combat soldiers “…nonfatal battle casualties…[were] neuropsychiatric” as reported in WWII by the Surgeon Generals report (as cited in War Chronicle, 1944) and 15-20% of Gulf War I vets reported to have PTSD.
It took Vietnam veterans up to 10-20 years before their symptoms reached the point of becoming debilitating. The implications for our modern veterans will have monumental deleterious effects in the next 10 years, it has been projected that PTSD rates in today’s wars will reach 50-60%. We will be inundated with mentally ill veterans who have few options and no where to turn and they will run afoul with the law