This Combat Service Identification Badge is for the 28th Infantry Division which is a unit of the Army National Guard. This CSIB is a 2 inch pin and is worn on Army Service Uniform (ASU) to reflect the service of the 28th Infantry Division. Has a pin backing to securely display your CSIB properly. Could also be displayed in a shadow box or worn on a Veterans sports jacket. The 28th Infantry Division is stationed in Harrisburg, Pennsylvania and was organized in 1879. This is the oldest unit of the Army and the emblem was redesigned in 1917. The 29th Infantry Division combat service identification badge is made and handled 100 percent in the USA.