
Brennan Linsley / AP
In this Sunday, Aug. 28, 2011 photo, U.S. Marine Infantryman Lance Cpl. Austin Jordan poses for a portrait at his small patrol base, in Helmand province, Afghanistan. "I was in fourth grade during 9-11," recalls Jordan. "The biggest thing I remember about it was how sad my family was. I was a little too young to understand the magnitude of what happened, but I definitely noticed how it changed pretty much everyone in America. I remember how everyone was brought together. And as I grew up, I noticed that just kind of went away, people forgot about it. And I guess that kind of pissed me off, made me want to join the Marines."

Brennan Linsley / AP
In this Sunday, Aug. 28, 2011 photo, U.S. Marine Infantryman Lance Cpl. Christian Seedorf, 19, from Orange County, Calif., poses for a portrait at his small patrol base, in Helmand province, Afghanistan. "Sept. 11, 2001, I was in fourth grade, and to be honest the only thing I remember, they basically just shut down the whole school, for possible threats of terrorist attacks across the country," Seedorf recalls. "And the teacher was just trying to calm everybody down, cause nobody really knew what was going on."

Brennan Linsley / AP
U.S. Marine Infantryman Lance Cpl. Steven Williams, 20, from Washington, poses for a portrait at his small patrol base, in Helmand province, southern Afghanistan. Williams, on his memory of the Sept. 11, 2001 attack: "I was in seventh grade, and we had a prayer with my football team, because we had family and friends over there." Williams, on why he joined the Marines: "I joined the Marines to better myself, to get away from what I was doing. It was just out of the blue. Just walked in one day (to the recruiting station). Couldn't find a job, it was hard. Hard living. So I walked in 2009, and left for Boot Camp in 2010."

Brennan Linsley / AP
In this Sept. 5, 2011 photo, U.S. Marine Infantryman Lance Cpl. Bradley Billedeaux, 20, of Paradise, Calif., poses for a portrait at his small patrol base, in Helmand province, southern Afghanistan. Billedeaux, on his memory of the Sept. 11, 2001 attack: "I was in fifth grade at the time, I remember we were in class when they told us about it. I was pretty young back then, but it was still a shock to everyone, and I had some buddies that had, their brother was a firefighter, I remember that, and he was killed in that." Billedeaux, on why he joined the Marines: "It's just something I've always wanted to do. I've had family history in the military. Both my great-grandpas were in World War II, one was a machine-gunner, and one was a navigator. My uncle was in Desert Storm as a Marine, so a little bit of family going back in the military."