Some fascinating stories if you take the time to browse through a few. The one below is from WWI.
Rank and organization: Corporal, U.S. Army, 344th Battalion, Tank Corps. Place and date: Near Varennes, France, 26 September 1918. Entered service at: France. Born: 29 November 1892, New York, N.Y. G.O. No.: 13, W.D., 1919. Citation: During an operation against enemy machinegun nests west of Varennes, Cpl. Call was in a tank with an officer when half of the turret was knocked off by a direct artillery hit. Choked by gas from the high-explosive shell, he left the tank and took cover in a shellhole 30 yards away. Seeing that the officer did not follow, and thinking that he might be alive, Cpl. Call returned to the tank under intense machinegun and shell fire and carried the officer over a mile under machinegun and sniper fire to safety.