Co D, 3rd BN 12th Inf, 4th Inf Div.

Company D, 3rd Battalion, 12th Infantry Regiment, 4th Infantry Division, has a distinguished history dating back to its original constitution in 1861. The regiment fought in major conflicts including the Civil War, World War II, and Vietnam. During the Vietnam War, Company D and the 3rd Battalion were actively engaged in combat operations in the Central Highlands, participating in significant campaigns such as Operation Wayne Grey and Operation Francis Marion. The unit is recognized for its valor and dedication, earning several unit citations and commendations for its service.