Infantry timelines · Infantry numbers 1–200

200th Infantry Regiment

A century of division assignments

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

200th Infantry Regiment unit graphic
200th Infantry Regiment
First division shownNot establishedSee source notes
Separate unit 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 Sep 2005; 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 modern infantry designation dates from the 2005 conversion of New Mexico air-defense artillery. Earlier branch service and inherited campaign honors are not represented as deployments by a 200th Infantry Regiment. The Army’s 2024 certificate is the governing lineage source.

Division patches

Division names appear in the timeline. No verified patch artwork is included for these assignments.

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 – 1 Sep 2005

    200th Infantry Regiment

    Other branch / predecessor service

    Lineage service in another branch or under a predecessor designation. This interval is not plotted as an infantry maneuver-division assignment.

    Source

  2. 1 Sep 2005 – 1 Sep 2008

    1st Battle Group / Battalion lineage

    26th Infantry Brigade · Brigade assignment

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

    Source

  3. 1 Sep 2008 – page cutoff*

    1st Battle Group / Battalion 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.

    Source

  4. 1 Sep 2005 – 1 Sep 2008

    2d Battle Group / Battalion lineage

    58th Infantry Brigade · Brigade assignment

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

    Source

    Deployments & overseas operations

    1. 2007-2008

      Iraq · Company C

      2d Battle Group / Battalion lineage · Deployment / campaign service

      The Army certificate credits Company C, not every element of the regiment, with Iraq service in these years. The labeled service overlaps an assignment change and is listed only once; consult the following assignment cards as well.

      Source
  5. 1 Sep 2008 – page cutoff*

    2d Battle Group / Battalion lineage

    Last documented: Inactive

    The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased. 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, regimental associations and secondary histories document assignments, operations and battalions. Exact lineage dates and approximate historical coverage are distinguished. 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: 200th Infantry lineage, 23 September 2024

Patch artwork

Unmodified artwork from Wikimedia Commons; individual file pages identify the artist and license. Insignia represent the divisions, not regimental affiliation badges.