The prevalence of traumatic event exposure and post-traumatic stress disorder (PTSD) were surveyed in a cohort of 198 full-time operational members of the South African National Defence Force stationed in their "home" unit between deployments. Approximately 90% of members reported having experienced or witnessed trauma in their lifetime (mean number of traumatic events = 4.3 +/- 3.2), whereas 51% reported having inflicted trauma. Twenty-six percent met diagnostic criteria for PTSD on self-report with approximately 29% with PTSD also meeting diagnostic criteria for depression. Few members, however, sought help. PTSD symptom severity was best predicted by trauma type (exposure to physical assault and infliction of life-threatening injury). These findings highlight the high rates of exposure to multiple, noncombat-related trauma in military personnel, the potentially high rates of PTSD, and the role of inflicted trauma as an additional risk factor for PTSD.