321st Signal Battalion

The 321st Signal Battalion was constituted on 29 July 1921 in the Organized Reserves as the 321st Signal Battalion and activated in 1942 during World War II. The unit provided vital communications support throughout the European Theater, contributing to the success of Allied operations. After the war, the battalion underwent several reorganizations and was inactivated and reactivated multiple times, serving both overseas and within the United States. Most recently, the 321st Signal Battalion supported operations during the Global War on Terrorism before being inactivated in 2007.