Combat

Marine veteran and intelligence officer Elliot Ackerman served five tours in Iraq and Afghanistan, and won the Silver Star Medal for leading a platoon in the Battle of Fallujah in Iraq. For him, Veterans Day is a time for reconnection.

Galloway, who died Aug. 18, was the only civilian to be awarded the medal of valor in the Vietnam War. He later co-authored We Were Soldiers Once ... and Young. Originally broadcast in 1992 and 2003.

Gallagher was court martialed for shooting at civilians from a sniper's post and murdering a defenseless captive in Iraq. New York Times correspondent David Philipps chronicles the case in Alpha.

Duncan, who died at 102, was a Marine officer and combat photographer during World War II. Later he photographed the wars in Korea and Vietnam. Originally broadcast in 1990.

Before it was called PTSD, soldiers traumatized in war were described as "shell-shocked" or "battle-fatigued." The new HBO documentary Wartorn, directed by Ellen Goosenberg Kent and Jon Alpert, chronicles the history of PTSD on the American battlefield from the Civil War to the present.

Psychiatric-social worker Raymond M. Scurfield is the Director of the Post Traumatic Stress Disorder Program at the American Lake V.A. Center in Washington State. He served in Vietnam, treating psychiatric casualties. He talks about the typical problems found in combat, the dilemma of sending G.I.'s back into battle, and he speculates on the difficulties G.I.s will face in the Gulf.