19th Infantry Regiment
Assignment not established
The available record does not establish a precise assignment throughout this interval. No division is inferred.
First division shown18th Division (World War I)29 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 5 Jun 1958; 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 received its own assignment in 1957, before the parent regiment was reorganized in 1958. 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 – 29 Jul 1918
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29 Jul 1918 – 14 Feb 1919
19th Infantry Regiment
18th Division (World War I)
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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14 Feb 1919 – 17 Oct 1922
19th 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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17 Oct 1922 – 26 Aug 1941
19th Infantry Regiment
Hawaiian Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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26 Aug 1941 – 5 Jun 1958
19th Infantry Regiment
24th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1944-1945
New Guinea, Leyte and Southern Philippines
19th Infantry Regiment · Campaign service
Campaign participation is recorded in the Army lineage. The year label summarizes campaign service, not an exact overseas tour.
Source1950-1953
Korea
19th 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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5 Jun 1958 – 15 Apr 1970
1st 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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15 Apr 1970 – 5 Jun 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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5 Jun 1972 – 16 Jun 1986
1st 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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16 Jun 1986 – 28 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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28 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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1 Feb 1957 – 25 Mar 1958
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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25 Mar 1958 – 1 Jul 1961
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 Jul 1961 – 26 Jan 1962
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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26 Jan 1962 – 1 May 1966
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 May 1966 – 21 May 1975
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 May 1975 – 15 Oct 1983
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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15 Oct 1983 – 28 Aug 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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28 Aug 1987 – 23 Aug 1988
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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23 Aug 1988 – 1 Mar 1999
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 Mar 1999 – 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.
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: 19th Infantry Regiment
- U.S. Army Center of Military History: 1st Battalion 19th Infantry Regiment
- U.S. Army Center of Military History: 2d Battalion 19th Infantry Regiment
- Army Historical Foundation: 21st Infantry Regiment
Patch artwork
Unmodified artwork from Wikimedia Commons; individual file pages identify the artist and license. Insignia represent the divisions, not regimental affiliation badges.
- Hawaiian Division · file and credit · public domain
- 24th Infantry Division · file and credit · public domain
- 25th Infantry Division · file and credit · public domain
