Aim and Fire Soldiers assigned to the 3rd U.S. Infantry Regiment, known as “The Old Guard,” participate in a live-fire exercise at Fort A.P. Hill, Va., July 8, 2021. SHARE IMAGE: Download Image: Full Size (1.01 MB) Tags: Army, Training Photo By: Army Spc. Laura Stephens VIRIN: 210708-A-D0439-434C.JPG Photo Gallery