11th Infantry Regiment
Assignment not established
The available record does not establish a precise assignment throughout this interval. No division is inferred.
First division shown5th Infantry Division17 Nov 1917
Separate battalion histories3 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 Jun 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 Nov 1917
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17 Nov 1917 – 20 Sep 1946
11th Infantry Regiment
5th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1918
France: St. Mihiel and Meuse-Argonne
11th Infantry Regiment · Campaign service
Campaign participation is recorded in the Army lineage. The year label summarizes campaign service, not an exact overseas tour.
Source1944-1945
Normandy, Northern France, Rhineland, Ardennes-Alsace and Central Europe
11th 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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20 Sep 1946 – 15 Jul 1947
11th 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 – 30 Apr 1950
11th Infantry Regiment
5th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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30 Apr 1950 – 1 Mar 1951
11th 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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1 Mar 1951 – 1 Sep 1953
11th Infantry Regiment
5th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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1 Sep 1953 – 25 May 1954
11th 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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25 May 1954 – 1 Jun 1957
11th Infantry Regiment
5th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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1 Jun 1957 – 14 Jun 1958
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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14 Jun 1958 – 19 Feb 1962
1st Battle Group / Battalion lineage
2d Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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19 Feb 1962 – 6 Aug 1971
1st Battle Group / Battalion lineage
5th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1968-1971
South Vietnam
1st Battle Group / Battalion lineage · Deployment / overseas operation
Served with the deployed 1st Brigade, 5th Infantry Division. The labeled service overlaps an assignment change and is listed only once; consult the following assignment cards as well.
Source
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6 Aug 1971 – 15 Jan 1984
1st 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 Jan 1984 – 14 Aug 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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14 Aug 1987 – page cutoff*
1st Battle Group / Battalion lineage
Last documented: TRADOC · Training
Institutional or training service. This is a command relationship, not a maneuver-division assignment. 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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14 Aug 1987 – page cutoff*
2d Battle Group / Battalion lineage
Last documented: TRADOC · Training
Institutional or training service. This is a command relationship, not a maneuver-division assignment. 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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14 Aug 1987 – page cutoff*
3d Battle Group / Battalion lineage
Last documented: TRADOC · Training
Institutional or training service. This is a command relationship, not a maneuver-division assignment. 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.
Service note · dates incomplete
2d Battalion · Infantry officer training
The Army IBOLC standards book identifies the battalion as the infantry officer training organization. Its earlier battle-group assignment dates remain incomplete here.
Service note · dates incomplete
3d Battalion · Officer Candidate School
The Army school directory identifies the battalion as the Federal Officer Candidate School. This is institutional training, not a division assignment.
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: 11th Infantry Regiment
- U.S. Army Center of Military History: 1st Battalion 11th Infantry Regiment
- Fort Benning: 3d Battalion, 11th Infantry Officer Candidate School
- U.S. Army: 2d Battalion, 11th Infantry IBOLC standards book
- 11th 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.
- 5th Infantry Division · file and credit · public domain
- 2d Infantry Division · file and credit · public domain
- 4th Infantry Division · file and credit · public domain
