Since October 2001, about 1.6 million U.S. troops have been deployed to Iraq and Afghanistan.
These military members and their families face unique challenges. Soldiers deal with stressors in combat that may not exist in civilian life.
Those exposed to high levels of combat are significantly more likely to experience acute stress and symptoms of posttraumatic stress disorder, or PTSD. Learn more facts .
It is not unusual for servicemen and women to suffer feelings of fear, anger, sadness, and worry when returning from deployment. Adjusting to family life can be difficult for everyone. Get tips for soldiers and veterans  and families and friends .