United States Army Ordnance Corps
The Ordnance Corps, known as the Ordnance Department from 1812 to 1950, is a sustainment branch of the United States Army headquartered at Fort Lee, Virginia. The broad mission of the Ordnance Corps is to supply Army combat units with weapons and ammunition, including at times, their procurements and maintenance.
Source: Wikipedia — United States Army Ordnance Corps (CC BY-SA 4.0)