The 9th Division was organized on 18 July 1918 at Camp Sheridan for service in World War I. When the War ended, 11 November 1918, deployment of the Division to France was canceled and it was demobilized on 15 February 1919. Reactivated on 1 August 1940, 9th Infantry Division soldiers fought valiantly in 8 crucial World War II campaigns in North Africa, Sicily, France, Belgium, and Germany. After a short inactivation, the 9th returned to the active force on 15 July 1947 as a training division at Fort Dix, New Jersey, and later served under NATO in Germany and at Fort Carson, Colorado, as a combat unit.
"The Old Reliables"
Inactive from 1962 to 1966, the 9th Infantry Division again was tapped for active service in Vietnam. The Division trained at Fort Riley, Kansas, and deployed to Vietnam in 1967. There the 9th fought with distinction in 8 campaigns as part of the Riverine Force. The Division left Vietnam in the summer of 1969 and was inactive for 3 years. In 1972 the "Old Reliables" were reactivated at Fort Lewis, Washington, where they tested new organizational concepts and equipment until deactivated in 1992. During combat in 16 campaigns in two wars, 13 soldiers of the Division were awarded the Medal of Honor.