Caption: "Victory flushed Yanks of the hard hitting 16th Infantry, 1st Division, crowd around a piano left behind in Monsard (sic), France, by hastily departing Germans." The 16th Infantry Regiment (Semper Paratus) is a regiment in the United States Army. The 16th was one of 4 original regiments to form the 1st Expeditionary Division, later known as the 1st Infantry Division. The 1st Infantry Division of the United States Army is the oldest division in the United States Army. It has seen continuous service since its organization in 1917. It was officially nicknamed the The Big Red One after its shoulder patch and is also nicknamed The Fighting First. Throughout WWI the 16th participated in every major 1st Division campaign. It was the first regiment to take combat casualties and engage German forces during the war.