United States Army 4th Infantry Division Shoulder sleeve insignia (1918–2015) For copyright and licensing information: https://commons.wikimedia.org/wiki/File:4th_Infantry_Division_SSI_(1918-2015).svg Additionally, This image is a work of a U.S. Army soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.