2-121 Infantry Battalion, 48th IBCT

The 2nd Battalion, 121st Infantry Regiment is a light infantry battalion of the 48th Infantry Brigade Combat Team (IBCT), Georgia Army National Guard. 2nd Battalion provides the 48th IBCT with mounted and dismounted maneuver assets to destroy enemy formations in close combat.

2nd Battalion, 121st Infantry is one of the oldest units in the U.S. Army, tracing its lineage to Georgia state militia units formed between 1810 and 1825. The regimental nickname "The Gray Bonnets" is derived from the title of a song, "Put on Your Old Gray Bonnets" adopted in 1928 as the official air, or marching song, of the regiment. The Distinctive Unit Insignia of the regiment is an "Old Gray Bonnet" proper, and is one of the few DUIs in the U.S. Army designed to be manufactured and worn in pairs (left and right).

The Regimental Crest is a blue shield with a gray saltire cross and a prickly pear and fleur-de-lis and a Boar's Head with an oak branch in its mouth on top. The blue background represents the Infantry while the gray cross symbolizes the unit's Confederate Service. The cactus represents duty on the Mexican border, and the fleur-de-lis service in France during World War I. The Boar's Head with oak leaf is the crest of the Georgia Army National Guard.