46th Infantry Regiment
Modern Era, United States, Infantry
The 46th Infantry Regiment was organized in 1917 as part of the Army's rapid expansion for World War I. Its twentieth-century history spans wartime growth, later divisional and battalion assignments, and eventual survival through modern training and institutional roles.
The regiment's battalions later served in World War II, Vietnam-era assignments, and in the Army training base. Like several nearby-numbered regiments, the 46th Infantry illustrates how lineages created for the world wars were later preserved inside a much more specialized and flexible force.
Today the regiment is remembered less for one single famous battlefield than for its continuity across multiple Army eras, from mass mobilization to modern training and readiness missions.
Battalion Page
A dedicated battalion subpage now collects the regiment's known battalion icons and short sketches for the 1st, 2d, and 3d Battalions. Open the 46th Infantry Regiment Battalions page.