Modern Era, United States, Infantry
This page collects the existing battalion illustrations and additional documented historical battalions of the 23d Infantry Regiment. The historical entries include inactive units and earlier designations; the regimental image identifies entries without a battalion-specific illustration.
This entry now anchors the battalion page in the regiment's origin or defining early identity, giving the 1st Battalion slot a more specific historical frame than the first scaffold pass.
The 23rd Infantry Regiment, the Tomahawks, was created in the Civil War era and continued into the frontier and overseas Army that followed. It served in the Indian Wars and in the campaigns of American expansion at the end of the nineteenth century, becoming one of the Army's established regular regiments.
The 2d Battalion entry uses the regiment's middle or operational arc to give the page a clearer sense of how the parent unit developed over time.
Its twentieth-century history is especially tied to the 2nd Infantry Division and later to battalion service in Korea, Vietnam, and the post-Cold War Army. Like many older regiments, its most important modern service came through battalions fighting under division and brigade headquarters rather than as a full regiment on campaign.
The 3d Battalion entry now carries the regiment into its later or enduring modern identity, tightening the page around the way the lineage is remembered in the modern Army.
The 23rd Infantry therefore bridges the old Regular Army and the modular modern Army, carrying a lineage that runs from frontier operations to twentieth-century divisional warfare and later expeditionary service.
The 4th Battalion was organized from the 4th Battle Group in Alaska in July 1963.
It transferred to the 25th Infantry Division in January 1966 for service in Vietnam and later served as a Stryker infantry battalion. Regimental history (Wikipedia).
The 5th Battalion was activated on 14 January 1966.
Assigned to the 172d Infantry Brigade in Alaska, it continued the regiment's northern garrison service after the 4th Battalion's transfer to the 25th Infantry Division. Regimental history (Wikipedia).
Research note: The added historical entries cite their sources individually. Regimental illustrations are labeled as such. An earlier battalion designation can continue through another battalion or a separate battery; these relationships are identified in the entries. The original three entries are retained; the additional entries do not treat regimental campaign credits as evidence that every battalion fought in those campaigns.
Division timeline, 1916–2026 · assignments, patches and deployments →