Lyle Joseph Bouck, Jr. enlisted in the Missouri National Guard at age 14. During World War II, he was a 20-year-old lieutenant in charge of the Intelligence and Reconnaissance Platoon, 394th Infantry Regiment, 99th Infantry Division. On the first morning of the Germans' advance during the Battle of the Bulge, his 18-man unit along with four forward artillery observers held off an entire German battalion of more than 500 men for nearly an entire day, killing or wounding 92, and significantly delayed the German advance in a vital sector of the northern front. Every single member of the platoon was later decorated, making it one of the most decorated platoons in all of World War II. Bouck was one of the youngest commissioned officers in the U.S. Army.

The 99th Infantry Division briefly existed, but never deployed, in the closing days of World War I, was reconstituted as a reserve unit in 1921, was ordered into active military service in 1942, and deployed overseas in 1944. The 99th landed at the French port of Le Havre and proceeded northeast to Belgium. During the heavy fighting in the Battle of the Bulge, the unit suffered many casualties, yet tenaciously held its defensive position. In March 1945, the 99th advanced into the Rhineland, crossing the Rhine River at Remagen on March 11. After fighting in the Ruhr area, the unit moved southward into Bavaria, where it was located at the end of the war.