105th Infantry Regiment
Modern Era, United States, Infantry
The 105th Infantry Regiment belongs to the Army's modern lineage system and reflects the service's repeated cycles of mobilization and reorganization. Its history is preserved primarily through official lineage rather than through a single long active regimental career.
Like many regiments in this number range, the 105th Infantry illustrates how the Army balanced flexibility with continuity across the twentieth century.
That makes the regiment part of the broader institutional story behind the modern Army's expansion base.
Battalion Page
A dedicated battalion subpage now collects the regiment's known battalion icons and short battalion sketches for the 1st, 2d, and 3d Battalions. Open the 105th Infantry Regiment Battalions page.