139th Infantry Regiment
Modern Era, United States, Infantry
The 139th Infantry Regiment is one of the modern-era lineages preserved by the Army through honors and redesignation. It reflects the broader pattern by which unit names outlasted changing tactical structures.
Its significance lies in continuity and institutional identity more than in one uninterrupted regimental field campaign history.
The 139th Infantry therefore remains part of the Army's long administrative and historical record.
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 139th Infantry Regiment Battalions page.