Trailblazers Staff Sgt. Tom Caldwell maintains security by a convoy on a road near Baqubah, Iraq, on Sept. 24, 2004. Caldwell is assigned to the Army National Guard's Company C, 141st Engineer Battalion, attached to the 1st Infantry Division's 3rd Brigade Combat Team. Known as the "Trailblazers," the engineers' job is to search for Improvised Explosive Devices in the Baqubah area. U.S. Army photo by Spc. James B. Smith Jr. ff off off off off off off off off off off Spc. Sean Hogan, left, and Staff Sgt. Terry Olauson use a mine detector to search for Improvised Explosive...