1 3/4 inch (44mm) Round Material: Antique Brass Metal Officially licensed by the U.S. Marines The Rifleman's Creed (also known as My Rifle and The Creed of the United States Marine) is a part of basic United States Marine Corps doctrine. Major General William H. Rupertus wrote it during World War II, probably in late 1941 or early 1942. In the past, all enlisted Marines would learn the creed at recruit training. However, in recent years the creed has been relegated to the back pages of the standard recruit training guide book and its memorization is no longer considered doctrine for recruits. Different, more concise versions of the creed have developed since its early days, but those closest to the original version remain the most widely accepted.