8th Infantry Regiment
Assignment not established
The available record does not establish a precise assignment throughout this interval. No division is inferred.
First division shown8th Infantry Division17 Dec 1917
Separate battalion histories4 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 – 17 Dec 1917
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17 Dec 1917 – 24 Mar 1923
8th Infantry Regiment
8th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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24 Mar 1923 – 25 Feb 1946
8th 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
8th 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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25 Feb 1946 – 15 Jul 1947
8th 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
8th 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 – 10 Apr 1970
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
1966-1970
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. The labeled service overlaps an assignment change and is listed only once; consult the following assignment cards as well.
Source
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10 Apr 1970 – 13 Sep 1972
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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13 Sep 1972 – 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 – page cutoff*
1st Battle Group / Battalion lineage
Last documented: 4th Infantry 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
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.
Source2007-2009
Nineveh Province, 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.
Source2010-2011
Southwest Asia
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 Apr 1957 – 1 Aug 1957
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 Aug 1957 – 1 Jan 1959
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 Jan 1959 – 1 Oct 1963
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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1 Oct 1963 – 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.
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.
Source
-
13 Sep 1972 – 1 Aug 1984
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 Aug 1984 – 15 Dec 1989
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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15 Dec 1989 – 16 Dec 1995
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 Dec 1995 – 16 Jan 1996
2d Battle Group / Battalion lineage
2d Armored Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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16 Jan 1996 – 16 Dec 2004
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
2003-2004
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. 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 – page cutoff*
2d Battle Group / Battalion lineage
Last documented: 4th Infantry 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
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
Western and southern 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
Service note · dates incomplete
3d Battalion · Vietnam service
The regimental history documents this battalion in Vietnam with the 4th Infantry Division. A complete sequence of battalion assignment dates is not established here.
Service note · dates incomplete
4th Battalion · Germany and Kuwait
Served with the 8th Infantry Division in Germany and deployed to Kuwait in 1991. The regiment history also describes its later move to Fort Lewis.
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: 8th Infantry Regiment
- U.S. Army Center of Military History: 1st Battalion 8th Infantry Regiment
- U.S. Army Center of Military History: 2d Battalion 8th Infantry Regiment
- 8th 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.
- 8th Infantry Division · file and credit · public domain
- 4th Infantry Division · file and credit · public domain
- 1st Infantry Division · file and credit · public domain
- 2d Armored Division · file and credit · public domain
