In 2001, the United States became embattled in the longest war in U.S. history. Since it began, more than 42,000 military members have returned home injured.
These injuries can range from concussions to missing limbs. But they also include injuries that aren't physically visible.
No scars are the same. And every wounded warrior experiences them differently.
This is an in-depth look at service members' experiences and how they deal with the prolonged effects of war in the Middle East.