Infantry timelines · Infantry numbers 1–200
A century of division assignments
1916–2026 · Regimental service, battle groups, battalions and deployments.
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 15 Feb 1959; 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.
Puerto Rico Infantry became the 65th in 1920. The later National Guard battalions belonged to the separate 92d Infantry Brigade, not a 92d Infantry Division. The 1992 reorganization retained only the 1st Battalion; Company E dates show organizational scope rather than a verified divisional assignment.
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
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.
Explore a date
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
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.
65th Infantry Regiment
The cited record establishes service outside an assigned division. Higher headquarters and temporary operational attachments could still direct the unit.
1944-1945
65th Infantry Regiment · Campaign service
Campaign participation is recorded in the cited history. The year label summarizes campaign service, not an exact overseas tour.
Source65th Infantry Regiment
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
1950-1953
65th Infantry Regiment · Campaign service
Campaign participation is recorded in the cited history. The year label summarizes campaign service, not an exact overseas tour. More than one assignment falls in the opening year; this year-level service marker does not establish the assignment on a particular deployment day.
Source65th Infantry Regiment
The cited record establishes service outside an assigned division. Higher headquarters and temporary operational attachments could still direct the unit.
65th Infantry Regiment
Division names are normalized across historical redesignations. This entry follows the cited unit lineage.
65th Infantry Regiment
The unit or its headquarters lineage was inactive. This status does not imply that every inherited honor or divisional affiliation was erased.
1st Battle Group / Battalion lineage
This headquarters is not a division. Temporary attachments in the service entries below are distinct from the formal assignment.
1st Battle Group / Battalion lineage
This headquarters is not a division. Temporary attachments in the service entries below are distinct from the formal 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.
2d Battle Group / Battalion lineage
This headquarters is not a division. Temporary attachments in the service entries below are distinct from the formal assignment.
2d Battle Group / Battalion lineage
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.
Company E · Headquarters lineage
The available record does not establish a precise assignment throughout this interval. No division is inferred.
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.
Unmodified artwork from Wikimedia Commons; individual file pages identify the artist and license. Insignia represent the divisions, not regimental affiliation badges.
