28th Infantry Regiment
Assignment not established
The available record does not establish a precise assignment throughout this interval. No division is inferred.
First division shown1st Infantry Division8 Jun 1917
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 Aug 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.
The 2d Battle Group moved to the 1st Infantry Division in February 1957, before the parent regiment completed its reorganization in August. The overlap is intentional.
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 – 8 Jun 1917
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8 Jun 1917 – 16 Oct 1939
28th Infantry Regiment
1st Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1918
France: Montdidier-Noyon, Aisne-Marne, St. Mihiel and Meuse-Argonne
28th 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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16 Oct 1939 – 22 Jun 1940
28th Infantry Regiment
No assigned division
The cited record establishes service outside an assigned division. Higher headquarters and temporary operational attachments could still direct the unit.
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22 Jun 1940 – 1 Nov 1945
28th Infantry Regiment
8th 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 and Central Europe
28th Infantry Regiment · Campaign service
Campaign participation is recorded in the Army lineage. The year label summarizes campaign service, not an exact overseas tour. 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 Nov 1945 – 17 Aug 1950
28th 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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17 Aug 1950 – 1 Aug 1957
28th Infantry Regiment
8th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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1 Aug 1957 – 1 May 1959
1st Battle Group / Battalion lineage
8th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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1 May 1959 – 28 Feb 1983
1st Battle Group / Battalion lineage
1st Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1965-1970
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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28 Feb 1983 – 27 Feb 1987
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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27 Feb 1987 – 16 Nov 2005
1st Battle Group / Battalion lineage
TRADOC · Training
Institutional or training service. This is a command relationship, not a maneuver-division assignment.
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16 Nov 2005 – 16 Jan 2006
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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16 Jan 2006 – 15 Dec 2015
1st Battle Group / Battalion lineage
1st Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
2012-2013
Afghanistan
1st Battle Group / Battalion lineage · Deployment / overseas operation
Relieved the 2d Battalion in May 2012 and returned to Fort Riley in February 2013.
Source
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15 Dec 2015 – 24 Mar 2023
1st Battle Group / Battalion lineage
3d Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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24 Mar 2023 – 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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15 Feb 1957 – 26 Dec 1958
2d Battle Group / Battalion lineage
1st Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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26 Dec 1958 – 1 Feb 1963
2d Battle Group / Battalion lineage
24th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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1 Feb 1963 – 13 Jan 1964
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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13 Jan 1964 – 15 Apr 1970
2d Battle Group / Battalion lineage
1st Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1965-1970
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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15 Apr 1970 – 31 Aug 1973
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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31 Aug 1973 – 1 Aug 1984
2d Battle Group / Battalion lineage
8th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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1 Aug 1984 – 27 Feb 1987
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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27 Feb 1987 – 30 Sep 1994
2d Battle Group / Battalion lineage
TRADOC · Training
Institutional or training service. This is a command relationship, not a maneuver-division assignment.
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30 Sep 1994 – 16 Sep 1996
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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16 Sep 1996 – 16 Nov 2005
2d Battle Group / Battalion lineage
TRADOC · Training
Institutional or training service. This is a command relationship, not a maneuver-division assignment.
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16 Nov 2005 – 16 Mar 2008
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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16 Mar 2008 – 1 May 2013
2d Battle Group / Battalion lineage
172d Infantry Brigade · Separate
This headquarters is not a division. Temporary attachments in the service entries below are distinct from the formal assignment.
Deployments & overseas operations
2008-2009
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.
Source2011-2012
Paktika Province, Afghanistan
2d Battle Group / Battalion lineage · Deployment / overseas operation
Deployed in May 2011 and was relieved by the regiment's 1st Battalion in May 2012.
Source
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1 May 2013 – 1 Jun 2013
2d Battle Group / Battalion lineage
Assignment not established
The parent brigade inactivated during this month. A precise effective date for this battalion is not established here.
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1 Jun 2013 – page cutoff*
2d 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.
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 28th Infantry Regiment
- U.S. Army Center of Military History: 2d Battalion 28th Infantry Regiment
- U.S. Army: 28th Infantry history and March 2023 inactivation
- U.S. Army: December 2015 transition to Task Force 1-28
- NCO Journal: 172nd Infantry Brigade cases its colors, May 2013
- 28th Infantry Regiment history (Wikipedia; secondary)
Patch artwork
Unmodified artwork from Wikimedia Commons; individual file pages identify the artist and license. Insignia represent the divisions, not regimental affiliation badges.
- 1st Infantry Division · file and credit · public domain
- 8th Infantry Division · file and credit · public domain
- 3d Infantry Division · file and credit · public domain
- 24th Infantry Division · file and credit · public domain
