Infantry timelines · Infantry numbers 1–200

10th Infantry Regiment

A century of division assignments

1916–2026 · Regimental service, battle groups, battalions and deployments.

10th Infantry Regiment unit graphic
10th Infantry Regiment
First division shown14th Division (World War I)5 Jul 1918
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 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.

The February 1919 release is known only to the month. Headquarters later activated under TRADOC are training organizations, not division assignments.

Division patches

5th Infantry Division4th Infantry Division83d Infantry Division

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.

The dated record

Division timeline

Battalion overview →

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.

  1. 1 Jan 1916 – 5 Jul 1918

    10th Infantry Regiment

    Assignment not established

    The available record does not establish a precise assignment throughout this interval. No division is inferred.

    Source

  2. 5 Jul 1918 – 1 Feb 1919

    10th Infantry Regiment

    14th Division (World War I)

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  3. 1 Feb 1919 – 1 Mar 1919

    10th Infantry Regiment

    Assignment not established

    The available record does not establish a precise assignment throughout this interval. No division is inferred.

    Source

  4. 1 Mar 1919 – 24 Mar 1923

    10th 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.

    Source

  5. 24 Mar 1923 – 20 Sep 1946

    10th Infantry Regiment

    5th Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

    Deployments & overseas operations

    1. 1944-1945

      Normandy, Northern France, Rhineland, Ardennes-Alsace and Central Europe

      10th Infantry Regiment · Campaign service

      Campaign participation is recorded in the Army lineage. The year label summarizes campaign service, not an exact overseas tour.

      Source
  6. 20 Sep 1946 – 15 Jul 1947

    10th 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.

    Source

  7. 15 Jul 1947 – 30 Apr 1950

    10th Infantry Regiment

    5th Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  8. 30 Apr 1950 – 1 Mar 1951

    10th 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.

    Source

  9. 1 Mar 1951 – 1 Sep 1953

    10th Infantry Regiment

    5th Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  10. 1 Sep 1953 – 25 May 1954

    10th 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.

    Source

  11. 25 May 1954 – 1 Jun 1957

    10th Infantry Regiment

    5th Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  12. 1 Jun 1957 – 25 Apr 1961

    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.

    Source

  13. 25 Apr 1961 – 3 Feb 1962

    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.

    Source

  14. 3 Feb 1962 – 19 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.

    Source

  15. 19 Feb 1962 – 15 Dec 1970

    1st Battle Group / Battalion lineage

    5th Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  16. 15 Dec 1970 – 16 Jun 1989

    1st Battle Group / Battalion lineage

    4th Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  17. 16 Jun 1989 – 15 Apr 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.

    Source

  18. 15 Apr 1996 – 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.

    Source

  19. 1 Jun 1957 – 1 Jul 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.

    Source

  20. 1 Jul 1957 – 14 Jun 1958

    2d Battle Group / Battalion lineage

    10th Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  21. 14 Jun 1958 – 23 Apr 1960

    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.

    Source

  22. 23 Apr 1960 – 19 Feb 1962

    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.

    Source

  23. 19 Feb 1962 – 15 Dec 1970

    2d Battle Group / Battalion lineage

    5th Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  24. 15 Dec 1970 – 21 Mar 1973

    2d Battle Group / Battalion lineage

    4th Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  25. 21 Mar 1973 – 4 Jun 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.

    Source

  26. 4 Jun 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.

    Source

  27. 1 Jun 1957 – 20 Mar 1959

    3d 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.

    Source

  28. 20 Mar 1959 – 31 Dec 1965

    3d Battle Group / Battalion lineage

    83d Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  29. 31 Dec 1965 – 26 May 1967

    3d 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.

    Source

  30. 26 May 1967 – 15 Dec 1970

    3d Battle Group / Battalion lineage

    5th Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  31. 15 Dec 1970 – 21 Nov 1976

    3d 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.

    Source

  32. 21 Nov 1976 – 1 Aug 1984

    3d Battle Group / Battalion lineage

    5th Infantry Division

    Division names are normalized across historical redesignations. This entry follows the cited unit lineage.

    Source

  33. 1 Aug 1984 – 4 Jun 1987

    3d 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.

    Source

  34. 4 Jun 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.

    Source

  35. 1 Jun 1957 – 19 Feb 1962

    4th 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.

    Source

  36. 19 Feb 1962 – 1 Oct 1962

    4th 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.

    Source

  37. 1 Oct 1962 – 1 Oct 1983

    4th Battle Group / Battalion lineage

    193d Infantry Brigade · Separate

    This headquarters is not a division. Temporary attachments in the service entries below are distinct from the formal assignment.

    Source

  38. 1 Oct 1983 – 4 Jun 1987

    4th 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.

    Source

  39. 4 Jun 1987 – 15 Apr 1996

    4th Battle Group / Battalion lineage

    TRADOC · Training

    Institutional or training service. This is a command relationship, not a maneuver-division assignment.

    Source

  40. 15 Apr 1996 – 26 Jan 2009

    4th 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.

    Source

  41. 26 Jan 2009 – page cutoff*

    4th 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.

    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.

  1. U.S. Army Center of Military History: 10th Infantry Regiment
  2. U.S. Army Center of Military History: 1st Battalion 10th Infantry Regiment
  3. U.S. Army Center of Military History: 2d Battalion 10th Infantry Regiment
  4. U.S. Army Center of Military History: 3d Battalion 10th Infantry Regiment
  5. U.S. Army Center of Military History: 4th Battalion 10th 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.