30th Infantry Regiment
Assignment not established
The available record does not establish a precise assignment throughout this interval. No division is inferred.
First division shown3d Infantry Division21 Nov 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 Jul 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 – 21 Nov 1917
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21 Nov 1917 – 12 Jan 1940
30th Infantry Regiment
3d Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1918
France: Champagne-Marne, Aisne-Marne, St. Mihiel and Meuse-Argonne
30th 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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12 Jan 1940 – 15 May 1940
30th 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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15 May 1940 – 6 Apr 1951
30th Infantry Regiment
3d Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1942-1945
North Africa, Sicily, Italy, Southern France and Central Europe
30th 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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6 Apr 1951 – 2 Dec 1954
30th 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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2 Dec 1954 – 1 Jul 1957
30th Infantry Regiment
3d Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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1 Jul 1957 – 16 Jun 1989
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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16 Jun 1989 – 16 Aug 1992
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 Aug 1992 – 15 Jan 1994
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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15 Jan 1994 – 16 Feb 1996
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 Feb 1996 – 16 Mar 2004
1st Battle Group / Battalion lineage
3d Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
2003
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
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16 Mar 2004 – 16 Jul 2006
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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16 Jul 2006 – page cutoff*
1st Battle Group / Battalion lineage
Last documented: 3d 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
2007
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.
Source2009-2010
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.
Source2012
Afghanistan
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 Jul 1957 – 22 Jan 1958
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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22 Jan 1958 – 1 Apr 1963
2d Battle Group / Battalion lineage
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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1 Apr 1963 – 16 Jun 1989
2d 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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16 Jun 1989 – 16 Jan 2005
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 Jan 2005 – 16 Sep 2015
2d 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 Sep 2015 – 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
2015-2016
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. More than one assignment falls in the opening year; this year-level service marker does not establish the assignment on a particular deployment day.
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: 30th Infantry Regiment
- U.S. Army Center of Military History: 1st Battalion 30th Infantry Regiment
- U.S. Army Center of Military History: 2d Battalion 30th 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.
- 3d Infantry Division · file and credit · public domain
- 10th Mountain Division · file and credit · public domain
