121st Infantry Regiment
Modern Era, United States, Infantry
The 121st Infantry Regiment belongs to the Army's preserved modern regimental lineage structure. It represents the continuity of identity, honors, and organization across repeated force-structure changes in the twentieth century.
Its history is maintained mainly through official lineage rather than through one continuous regimental field career, a pattern common among many higher-numbered infantry lineages.
The 121st Infantry remains part of the Army's broader institutional memory and historical record.
Battalion Page
The battalion subpage collects the regiment's battalion illustrations and additional historical entries with sources. Open the 121st Infantry Regiment Battalions page.
Division timeline, 1916–2026 · assignments, patches and deployments →