Christopher A. Coleman, an 11th grader in the Swainsboro High School Junior Reserved Officers' Training Corps, smiles as Spc. Bradley R. Vagg, a fire support specialist with Headquarters and Headquarters Troop, 6th Squadron, 8th Cavalry Regiment, 4th Infantry Brigade Combat Team, 3rd Infantry Division, discusses the controls inside the M1200 Armored Knight, April 5, during a tour of the 4th IBCT complex on Fort Stewart, Ga. "Vanguard" soldiers from various battalions put their equipment and expertise on display for the students.