40th Infantry Regiment
Modern Era, United States, Infantry
The 40th Infantry Regiment was part of the Army growth associated with the world-war era and, like several nearby-numbered regiments, did not retain a large public profile after the great reorganizations of the twentieth century. Its existence belongs to the Army's broader effort to build a force capable of large-scale modern war.
Although the regiment did not remain one of the best-known long-term field lineages, it still reflects the Army's pattern of raising, reorganizing, and inactivating units as requirements changed between the world wars and during the development of the modern force.
The 40th Infantry is thus a reminder that much of the Army's history lies not only in famous regiments but also in the shorter-lived organizations created to meet specific strategic moments.
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 40th Infantry Regiment Battalions page.