how did the big red one get its name
1st Infantry Division (United States) The 1st Infantry Division is a combined arms division of the United States Army, and is the oldest continuously serving in the Regular Army.[4] It has seen continuous service since its organization in 1917 during World War I.[5] It was officially nicknamed "The Big Red One" (abbreviated "BRO"[2]) after its shoulder patch[5] and is also nicknamed "The Fighting First".[5] However, the division has also received troop monikers of "The Big Dead One" and "The Bloody First" as puns on the respective officially sanctioned nicknames.[6] It is currently based at Fort Riley, Kansas.