The history of the 1st Infantry Division, nicknamed "The Fighting First" or "The Big Red One" after its distinctive shoulder patch, is one of the richest in the United States Army. They have provided continuous service to the country since their organization in 1917.

A Summary History of the 4th Infantry Division, whose motto is "Steadfast and Loyal," is a heavy mechanized division in the United States Regular Army. The 4th ID has a storied history from WWI, WWII, Vietnam, and Operation Iraqi Freedom. Arguably the most modernized division in the army, the 4ID is currently organized with four Brigade Combat Teams (BCT), a fires brigade, an aviation brigade, and various supporting units.