22d Infantry Regiment
Assignment not established
The available record does not establish a precise assignment throughout this interval. No division is inferred.
First division shown9th Infantry Division27 Jul 1918
Separate battalion histories2 documented elementsDated lineages and service notes below
Page cutoff8 September 2026Last-documented status is explicitly marked
One regiment, separate assignments
The common row follows the regiment. After its reorganization, battle groups and battalions could hold different assignments at the same time. A deployment or temporary attachment does not by itself change the assigned division. The common row closes on 1 Apr 1957; later service belongs to the separate element rows. Battalion rows follow headquarters lineages, often descended from lettered companies, rather than assuming that the old regimental battalions continued unchanged.
Division patches
Representative division patches. Patterns could change over time; an image does not imply that the exact version was worn throughout every period. Divisions without a verified asset remain identified by name.
At a glance
Assignments across time
Bar widths follow elapsed time.
Scroll horizontally on a small screen. Select a segment to open its dated entry. Diamond markers open deployments; their positions indicate the labeled year, not an exact start date or duration. Short assignments are easier to inspect in the list below.
- Division assignment
- 1st Infantry
- 2d Infantry
- 8th Infantry
- Separate headquarters
- Training / academy
- Inactive
- Unverified / last documented
Explore a date
Who were they with?
Look up the dated rows below. Service notes with incomplete dates are excluded; last-documented results do not certify a current assignment.
The dated record
Division timeline
Deployments, operations and credited campaign service appear inside assignment cards. Award years establish credited service, not exact tour dates. Some service notes identify only company-sized elements. This is a sourced selection, not a complete movement log.
Assignment ends are exclusive: the next period starts on that date. *Striped final bars mean last documented, with later status unverified through the page cutoff. Unknown intervals are not treated as inactive.
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1 Jan 1916 – 27 Jul 1918
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27 Jul 1918 – 24 Mar 1923
22d Infantry Regiment
9th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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24 Mar 1923 – 1 Mar 1946
22d Infantry Regiment
4th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1944-1945
Normandy, Northern France, Rhineland, Ardennes-Alsace and Central Europe
22d Infantry Regiment · Campaign service
Campaign participation is recorded in the Army lineage. The year label summarizes campaign service, not an exact overseas tour.
Source
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1 Mar 1946 – 15 Jul 1947
22d Infantry Regiment
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
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15 Jul 1947 – 1 Apr 1957
22d Infantry Regiment
4th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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1 Apr 1957 – 1 Aug 1984
1st Battle Group / Battalion lineage
4th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1966-1971
Vietnam
1st Battle Group / Battalion lineage · Credited overseas service
The Army lineage lists a unit decoration for service in these years. These are credited service years, not exact deployment and return dates.
Source
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1 Aug 1984 – 1 May 1986
1st Battle Group / Battalion lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
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1 May 1986 – 16 Feb 1996
1st Battle Group / Battalion lineage
10th Mountain Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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16 Feb 1996 – 16 Dec 2004
1st Battle Group / Battalion lineage
4th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
2003-2004
Iraq
1st Battle Group / Battalion lineage · Credited overseas service
The Army lineage lists a unit decoration for service in these years. These are credited service years, not exact deployment and return dates. The labeled service overlaps an assignment change and is listed only once; consult the following assignment cards as well.
Source
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16 Dec 2004 – 17 Mar 2014
1st Battle Group / Battalion lineage
4th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
2005-2006
Iraq
1st Battle Group / Battalion lineage · Credited overseas service
The Army lineage lists a unit decoration for service in these years. These are credited service years, not exact deployment and return dates.
Source2008-2009
Baghdad, Iraq
1st Battle Group / Battalion lineage · Credited overseas service
The Army lineage lists a unit decoration for service in these years. These are credited service years, not exact deployment and return dates.
Source
-
17 Mar 2014 – page cutoff*
1st Battle Group / Battalion lineage
Last documented: Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased. The source establishes this last recorded status, not uninterrupted service through 2026. The striped bar extends to the page cutoff to keep the later research gap visible.
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1 Apr 1957 – 1 Oct 1963
2d Battle Group / Battalion lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
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1 Oct 1963 – 1 Aug 1967
2d Battle Group / Battalion lineage
4th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1966-1970
Vietnam
2d Battle Group / Battalion lineage · Credited overseas service
The Army lineage lists a unit decoration for service in these years. These are credited service years, not exact deployment and return dates. The labeled service overlaps an assignment change and is listed only once; consult the following assignment cards as well.
Source
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1 Aug 1967 – 15 Dec 1970
2d Battle Group / Battalion lineage
25th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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15 Dec 1970 – 13 Sep 1972
2d Battle Group / Battalion lineage
4th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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13 Sep 1972 – 21 Sep 1976
2d Battle Group / Battalion lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
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21 Sep 1976 – 1 Jul 1984
2d Battle Group / Battalion lineage
4th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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1 Jul 1984 – 1 Sep 1986
2d Battle Group / Battalion lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
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1 Sep 1986 – 16 Sep 2004
2d Battle Group / Battalion lineage
10th Mountain Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
2003-2004
Afghanistan
2d Battle Group / Battalion lineage · Credited overseas service
The Army lineage lists a unit decoration for service in these years. These are credited service years, not exact deployment and return dates. The labeled service overlaps an assignment change and is listed only once; consult the following assignment cards as well.
Source
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16 Sep 2004 – page cutoff*
2d Battle Group / Battalion lineage
Last documented: 10th Mountain Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage. The source establishes this last recorded status, not uninterrupted service through 2026. The striped bar extends to the page cutoff to keep the later research gap visible.
Deployments & overseas operations
2005-2006
Southwest Asia
2d Battle Group / Battalion lineage · Credited overseas service
The Army lineage lists a unit decoration for service in these years. These are credited service years, not exact deployment and return dates.
Source2007-2008
Iraq
2d Battle Group / Battalion lineage · Credited overseas service
The Army lineage lists a unit decoration for service in these years. These are credited service years, not exact deployment and return dates.
Source2010
Afghanistan
2d Battle Group / Battalion lineage · Credited overseas service
The Army lineage lists a unit decoration for service in these years. These are credited service years, not exact deployment and return dates.
Source
Sources and scope
Army Center of Military History lineage certificates provide the dated backbone. Regimental associations and secondary histories supplement individual operations and battalions. Where the evidence stops, the page says so. A page cutoff is not a claim that every unit directory was current on that date.
Earlier battalions are covered by common regimental service; separately dated lineages and substantiated later battalions receive their own rows or notes. A unit graphic alone is not evidence of a battalion assignment. Reserve, training and inactive organizations are distinguished from active combat units.
- U.S. Army Center of Military History: 1st Battalion 22d Infantry Regiment
- U.S. Army Center of Military History: 2d Battalion 22d Infantry Regiment
- 1st Battalion, 22nd Infantry veterans: March 2014 reflagging
Patch artwork
Unmodified artwork from Wikimedia Commons; individual file pages identify the artist and license. Insignia represent the divisions, not regimental affiliation badges.
- 9th Infantry Division · file and credit · public domain
- 4th Infantry Division · file and credit · public domain
- 10th Mountain Division · file and credit · public domain
- 25th Infantry Division · file and credit · public domain
