This uniform is worn for formal occasions and has largely maintained its current form since the late 19th century. It remains a strong symbol of battles won. Army Dress Uniform Set Up: The Veteran's Guide USAMM The term "dress blues" refers to a military uniform worn for formal occasions. The dress blues uniform is worn by various branches of the military, including the Army, Marine Corps, Navy, and Formal and ceremonial military uniforms from around the world : r redscarepod