U.S. Army Rangers from 75th Ranger Regiment simulate clearing a village alley in support of the Army Marketing Research Group’s “Warriors Wanted” campaign at Fort Campbell, Ky, on July 22, 2018.

Smith, commander of the 1st Battalion, 21st Infantry, of the 24th Infantry Division, led the 500-man delaying force, dubbed Task Force Smith, who were airlifted from Japan on July 2, 1950.