3:39th Infantry

The 3rd Battalion, 39th Infantry Regiment (3/39th Infantry) has a distinguished history within the U.S. Army. Originally constituted in 1917, it has served in major conflicts such as World War II and the Vietnam War. During the Vietnam War, 3/39th Infantry was assigned to the 9th Infantry Division and operated in the challenging Mekong Delta, participating in significant operations including Operation Palm Tree and Operation Coronado. The battalion earned multiple unit commendations for its valor and professionalism before being inactivated as part of post-war drawdowns.