Sunday marks the third anniversary of the start of the war in Iraq.
Some studies indicate that one out of every six soldiers returning from the war will suffer from some form of post-traumatic stress disorder.
The documentary "Hidden Wounds" premieres on the New England Cable News network this weekend.
The program profiles three Massachusetts veterans of the Iraq war, and examines the struggles they faced when they returned home with post-traumatic stress disorder, or PTSD.
This program aired on March 17, 2006. The audio for this program is not available.