CHECK POINTS U.S. Army Staff Sgt. Aaron Shepherd teaches Iraqi soldiers checkpoint procedures inside a building on Forward Operating Base Hawk, Iraq, Sept. 18, 2008. Shepherd and other soldiers are assigned to the 4th Infantry Division's Troop C, 4th Squadron, 10th Cavalry Regiment. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 054219-F-YIG09-460.jpg Photo Gallery