The Distinctive Unit Insignia of the 22nd Personnel Services Battalion was approved on 28 July 1966. Red and yellow (gold) are used throughout the insignia to reflect the unit’s significant amount of service in that country (it received credit for participating in 14 of the Vietnam War’s 17 campaigns). The bird with spread wings is a phoenix, a symbol of continual renewal and here serves as a reference to the unit’s role in processing between 18,000 and 30,000 replacement troops per month. A globe superimposed on an embattled tower is a reminder of the remote locations where the organization has been stationed; five embattlements refers to the unit’s core missions of providing administrative, band, postal, replacement, and special services to supported units.
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The 22nd Personnel Services Battalion was originally formed as the 22nd Replacement Battalion on 16 October 1942. During World War II it served in two campaigns in the European Theater, Naples-Foggia and Rome-Arno, and earned a Meritorious Unit Commendation before being inactivated in December 1945. During the Vietnam War, it not only took part in the vast majority of campaigns, but also was honored with four more Meritorious Unit Commendations for its service between 1966 and 1970—real-world proof of the seriousness of he unit's "Shall Do" motto.
It was redesignated as the 22d Personnel and Administration Battalion in 1980 and activated in Germany, then redesignated as the 22nd Personnel Services Battalion in 1994 and activated at Fort Lewis. Its most recent documented assignment was to the 593rd Sustainment Brigade, with some reports indicating it had been redesignated yet again as the 22nd Personnel Services Company and assigned to the 593rd Sustainment Brigade’s Special Troops Battalion.