52d Infantry Regiment
Not yet constituted / organized
This timeline begins in 1916. The cited organization had not yet been constituted or organized during this interval; its formation follows.
First division shown6th Infantry Division16 Nov 1917
Separate unit histories8 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 9 Oct 1943; 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 1st and 2d Battalion headquarters became Companies A and B in 2001 and 2003. Separate company rows start at those redesignations. C, D and F also held inactive battle-group designations; their labels follow the later companies. Pre-1957 battalion rows trace their predecessor companies in armored infantry battalions.
Division patches
6th Infantry Division
9th Infantry Division
9th Armored Division
71st Infantry Division
1st Armored Division
23d Infantry Division (Americal)
3d Armored Division
2d Infantry Division
25th Infantry DivisionRepresentative 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 – 15 May 1917
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15 May 1917 – 16 Nov 1917
52d Infantry Regiment
Assignment not established
The available record does not establish a precise assignment throughout this interval. No division is inferred.
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16 Nov 1917 – 1 Sep 1921
52d Infantry Regiment
6th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1918
France
52d Infantry Regiment · Campaign service
Campaign participation is recorded in the cited history. The year label summarizes campaign service, not an exact overseas tour.
Source
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1 Sep 1921 – 15 Aug 1927
52d Infantry Regiment
Inactive · 6th Infantry Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
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15 Aug 1927 – 1 Oct 1933
52d Infantry Regiment
Inactive · 9th Infantry Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
1 Oct 1933 – 1 Oct 1940
52d Infantry Regiment
Inactive · 6th Infantry Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
1 Oct 1940 – 15 Jul 1942
52d 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.
-
15 Jul 1942 – 9 Oct 1943
52d Infantry Regiment
9th Armored Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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9 Oct 1943 – 13 Oct 1945
1st Battle Group / Battalion lineage
9th Armored Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1944-1945
Western Europe
1st Battle Group / Battalion lineage · Deployment / campaign service
The predecessor Company A, 60th Armored Infantry Battalion, served with the 9th Armored Division. The labeled service overlaps an assignment change and is listed only once; consult the following assignment cards as well.
Source
-
13 Oct 1945 – 14 Sep 1950
1st Battle Group / Battalion lineage
Inactive · 9th Armored Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
14 Sep 1950 – 25 Feb 1953
1st Battle Group / Battalion lineage
Inactive · 71st Infantry Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
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25 Feb 1953 – 1 Mar 1957
1st Battle Group / Battalion lineage
Inactive · 9th Armored Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
1 Mar 1957 – 3 Feb 1962
1st 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.
-
3 Feb 1962 – 12 May 1967
1st Battle Group / Battalion lineage
1st Armored Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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12 May 1967 – 15 Feb 1969
1st Battle Group / Battalion lineage
198th Infantry Brigade · Separate
This headquarters is not a division. Temporary attachments in the service entries below are distinct from the formal assignment.
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15 Feb 1969 – 30 Nov 1971
1st Battle Group / Battalion lineage
23d Infantry Division (Americal)
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
1969-1970
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. 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
-
30 Nov 1971 – 15 Sep 1972
1st 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.
Deployments & overseas operations
1971
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. 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
-
15 Sep 1972 – 16 Nov 1987
1st Battle Group / Battalion lineage
1st Armored Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
-
16 Nov 1987 – 16 Jan 1988
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.
-
16 Jan 1988 – 16 Oct 1991
1st 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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16 Oct 1991 – 15 Oct 1994
1st Battle Group / Battalion lineage
177th Armored Brigade
This headquarters is not a division. Temporary attachments in the service entries below are distinct from the formal assignment.
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15 Oct 1994 – 19 Dec 2001
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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9 Oct 1943 – 13 Oct 1945
2d Battle Group / Battalion lineage
9th Armored Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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13 Oct 1945 – 14 Sep 1950
2d Battle Group / Battalion lineage
Inactive · 9th Armored Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
14 Sep 1950 – 25 Feb 1953
2d Battle Group / Battalion lineage
Inactive · 71st Infantry Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
25 Feb 1953 – 1 Mar 1957
2d Battle Group / Battalion lineage
Inactive · 9th Armored Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
1 Mar 1957 – 1 Oct 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.
-
1 Oct 1957 – 3 Feb 1962
2d Battle Group / Battalion lineage
3d Armored Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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3 Feb 1962 – 10 Sep 1963
2d Battle Group / Battalion lineage
1st Armored Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
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10 Sep 1963 – 12 May 1967
2d Battle Group / Battalion lineage
Inactive · 1st Armored Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
12 May 1967 – 15 Sep 1972
2d Battle Group / Battalion lineage
1st Armored Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
-
15 Sep 1972 – 3 Dec 2003
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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19 Dec 2001 – 16 Jan 2004
Company A · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
16 Jan 2004 – 16 Dec 2006
Company A · Headquarters lineage
172d Infantry Brigade · Separate
This headquarters is not a division. Temporary attachments in the service entries below are distinct from the formal assignment.
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16 Dec 2006 – 17 Apr 2007
Company A · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
17 Apr 2007 – page cutoff*
Company A · Headquarters lineage
Last documented: 2d 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.
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3 Dec 2003 – 16 Oct 2005
Company B · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
16 Oct 2005 – page cutoff*
Company B · Headquarters lineage
Last documented: 25th 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
Baghdad, Iraq
Company B · Headquarters 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
-
1 Jul 1959 – 1 Jun 1966
Company C · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
1 Jun 1966 – 15 Aug 1972
Company C · Headquarters lineage
No assigned division
The cited record establishes service outside an assigned division. Higher headquarters and temporary operational attachments could still direct the unit.
Deployments & overseas operations
1968-1969
Vietnam
Company C · Headquarters 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
-
15 Aug 1972 – 16 Sep 2000
Company C · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
16 Sep 2000 – 27 Jul 2005
Company C · Headquarters lineage
2d Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
2003-2004
Iraq
Company C · Headquarters 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
-
27 Jul 2005 – page cutoff*
Company C · Headquarters lineage
Last documented: 2d 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
2006-2007
Iraq
Company C · Headquarters 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
-
1 Jul 1959 – 1 Jun 1966
Company D · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
1 Jun 1966 – 22 Nov 1969
Company D · Headquarters lineage
No assigned division
The cited record establishes service outside an assigned division. Higher headquarters and temporary operational attachments could still direct the unit.
Deployments & overseas operations
1967
Vietnam
Company D · Headquarters 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.
Source1968
Vietnam
Company D · Headquarters 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
-
22 Nov 1969 – 30 Jun 1971
Company D · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
30 Jun 1971 – 26 Nov 1972
Company D · Headquarters lineage
No assigned division
The cited record establishes service outside an assigned division. Higher headquarters and temporary operational attachments could still direct the unit.
-
26 Nov 1972 – 16 Jul 2002
Company D · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
16 Jul 2002 – 1 Jun 2006
Company D · Headquarters lineage
25th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
2005
Nineveh Province, Iraq
Company D · Headquarters 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
-
1 Jun 2006 – 16 Dec 2006
Company D · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
16 Dec 2006 – 15 Oct 2014
Company D · Headquarters lineage
25th Infantry Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
Deployments & overseas operations
2008-2009
Iraq
Company D · Headquarters 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
-
15 Oct 2014 – 16 Sep 2015
Company D · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
16 Sep 2015 – page cutoff*
Company D · Headquarters lineage
Last documented: No assigned division
The cited record establishes service outside an assigned division. Higher headquarters and temporary operational attachments could still direct the unit. 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 Jul 1959 – 20 Dec 1967
Company F · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
20 Dec 1967 – 1 Feb 1969
Company F · Headquarters lineage
No assigned division
The cited record establishes service outside an assigned division. Higher headquarters and temporary operational attachments could still direct the unit.
Deployments & overseas operations
1967-1968
Vietnam
Company F · Headquarters 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
-
1 Feb 1969 – 16 Jun 1996
Company F · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
16 Jun 1996 – 15 Sep 1997
Company F · Headquarters lineage
No assigned division
The cited record establishes service outside an assigned division. Higher headquarters and temporary operational attachments could still direct the unit.
-
15 Sep 1997 – 1 Jun 2006
Company F · Headquarters lineage
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
1 Jun 2006 – page cutoff*
Company F · Headquarters lineage
Last documented: 2d 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
2007-2008
Iraq
Company F · Headquarters 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
-
9 Oct 1943 – 13 Oct 1945
52d Armored Infantry Battalion · Predecessor
9th Armored Division
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
-
13 Oct 1945 – 14 Sep 1950
52d Armored Infantry Battalion · Predecessor
Inactive · 9th Armored Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
14 Sep 1950 – 25 Feb 1953
52d Armored Infantry Battalion · Predecessor
Inactive · 71st Infantry Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
25 Feb 1953 – 23 Jul 1956
52d Armored Infantry Battalion · Predecessor
Inactive · 9th Armored Division
The unit was inactive but retained the division assignment shown. Paper assignments and Reserve-officer training are not active combat service.
-
23 Jul 1956 – 15 Aug 1956
52d Armored Infantry Battalion · Predecessor
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
-
15 Aug 1956 – 24 Jun 1958
52d Armored Infantry Battalion · Predecessor
No assigned division
The cited record establishes service outside an assigned division. Higher headquarters and temporary operational attachments could still direct the unit.
-
24 Jun 1958 – 1 Jul 1959
52d Armored Infantry Battalion · Predecessor
Inactive
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
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.
- Army Center of Military History: 52d Infantry Regiment
- Army Center of Military History: Company A 52d Infantry Regiment
- Army Center of Military History: Company B 52d Infantry Regiment
- Army Center of Military History: Company C 52d Infantry Regiment
- Army Center of Military History: Company D 52d Infantry Regiment
- Army Center of Military History: Company F 52d 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.
- 6th Infantry Division · file and credit · public domain
- 9th Infantry Division · file and credit · public domain
- 9th Armored Division · file and credit · public domain
- 71st Infantry Division · file and credit · public domain
- 1st Armored Division · file and credit · CC BY-SA 4.0 (Noclador; unmodified)
- 23d Infantry Division (Americal) · file and credit · public domain
- 3d Armored Division · file and credit · public domain
- 2d Infantry Division · file and credit · public domain
- 25th Infantry Division · file and credit · public domain
