War can have a powerful psychological impact on participants and civilians alike.

Combat can lead to distress or even post-traumatic stress disorder, which is marked by extreme worry, re-experiencing of the event and avoidance of things reminiscent of the trauma.

Prolonged separation from family and friends can also cause problems.

Adapted from the Encyclopedia of Psychology

For activities and resources for psychologists working with soldiers and veterans, visit APA's Military and Veteran Issues page.

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