On what group was the first focus of research on posttraumatic stress disorder as the aftermath of traumatic events?

Question

Quizplus · Accepted Answer

The first focus of research on posttraumatic stress disorder was on Vietnam War veterans. In the 1980s, PTSD was included in the DSM-III (Diagnostic and Statistical Manual of Mental Disorders) and became recognized as a legitimate disorder. Since then, research has expanded to other populations including victims of sexual assault, natural disasters, and other traumas.

On What Group Was the First Focus of Research on Posttraumatic