U.S. Army Sgt. Juan Rivera launches a Raven unmanned aerial vehicle.
U.S. Army Sgt. Juan Rivera launches a Raven unmanned aerial vehicle into the air over Baghdad, Iraq, on Dec. 15, 2005. The Raven system is used to conduct surveillance in outlying areas in downtown Baghdad. Rivera is assigned to the 1st Battalion, 9th Field Artillery, 3rd Infantry Division.