100th Infantry Regiment Battalions
Modern Era, United States, Infantry
This second-pass battalion page ties each battalion icon more directly to the parent regiment's established story. Until a battalion-by-battalion lineage research pass is completed, the copy below should be read as regiment-specific context rather than as a final battalion lineage sheet.
1st Battalion, 100th Infantry Regiment
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 100th Infantry Regiment stands apart from most other regiments in this number range because of its famous connection to Japanese American service in World War II. The 100th Infantry Battalion from Hawaii became one of the most decorated units of its size and length of service in American military history.
2d Battalion, 100th Infantry Regiment
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.
That battalion fought in Italy and later became closely linked with the 442nd Regimental Combat Team, creating one of the most celebrated lineages in the entire Army. The 100th name is therefore associated not simply with a numbered regiment, but with a powerful story of loyalty, sacrifice, and combat distinction under difficult political conditions at home.
3d Battalion, 100th Infantry Regiment
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.
In the modern U.S. Army, the 100th remains one of the most meaningful symbols of Nisei military service and of the Army's broader story of inclusion through wartime sacrifice.
Research note: This second pass replaces the generic scaffold text with regiment-specific context drawn from the parent regiment page. Dedicated battalion-level lineage research is still deferred to a later pass.