U.S. Marine Corps Cpl. Adam Nall, a rifleman with Kilo Company, Third Battalion, 23rd Marine Regiment, poses for a photo while training for a squad competition at Fort Knox, Kentucky, on June 26, 2021. The goal of this training is to enable a rifle squad to complete any mission by perfecting skills like land navigation, patrolling, offensive and defensive postures, and mastery of weapons and tactics. (U.S. Marine Corps photo by Cpl. James Stanfield)