The 2nd Brigade of the U.S. Army's 1st Armored Division has carried the Iron Brigade moniker since 1985 and was previously called the "Black Hat" Brigade. The 3rd Brigade Combat Team, 1st Infantry Division was known as the Iron Brigade from its formation in 1917 through World War I, World War II and Vietnam, until some time in the early 2000s when, for reasons that are still unclear, the name was changed to Duke Brigade. The unit crest was an Iron Cross in a triangle, it appears that that was also changed. The 3rd Brigade of the 4th Infantry Division is also known as the Iron Brigade. Its unit crest is similar to the medals issued to veterans of the both Western and the Eastern Iron Brigades of the Army of the Potomac. The 1st Heavy Brigade Combat Team of the 2nd Infantry Division (United States) is known as the Iron Brigade as well. Located at Camp Casey, South Korea, the brigade has a critical role of military deterrence on the Korean Peninsula. The 2nd Brigade of the 3rd Armored Division (Spearhead), formerly stationed on Coleman Kaserne in Gelnhausen, Germany. The 157th Maneuver Enhancement Brigade, also known as the Iron Brigade, is based out of Milwaukee, Wisconsin. It was formerly known as the 57th Field Artillery Brigade, at which time its subordinate organizations included the 1st Battalion, 126th Field Artillery Regiment and the 1st Battalion, 121st Field Artillery Regiment from the Wisconsin Army National Guard, plus the 1st Battalion, 182nd Field Artillery Regiment of the Michigan Army National Guard. Not to be confused with the famous "Iron Brigade" of the Civil War, the 57th Field Artillery Brigade is also known as the "Iron Brigade," a nickname traditionally given to crack artillery units in the Civil War. It was during World War I that the 57th Field Artillery Brigade earned its nickname as it spent many hours at the front and fired more artillery rounds than any brigade in the American Army. The 32nd Infantry Division was an infantry division of the United States Army National Guard that fought primarily during World War I and World War II. It was formed with units from the states of Wisconsin and Michigan. With roots as the Iron Brigade in the American Civil War, the division's ancestral units came to be referred to as the Iron Jaw Division. The division was briefly called up during the Berlin Crisis in 1961. In 1967, the division was deactivated and reconstituted the 32nd Infantry Brigade of the Wisconsin Army National Guard only to be reorganized in 2007 as the 32nd Infantry Brigade Combat Team.