The Ninth Infantry Division is a unit of the United States Army, established in 1940. It played a significant role during World War II, participating in major campaigns such as the invasion of Normandy and the Battle of the Bulge. The division is known for its distinctive "Spearhead" insignia and has a history of being involved in various conflicts, including the Vietnam War. After its initial deactivation in 1946, the Ninth Infantry Division was reactivated several times, serving in different capacities. It was last active in the late 1990s and is now considered a part of military history, with its legacy continuing through the soldiers who served in it.