Dress Blues Explained The Dress Blue uniform, worn by Marines, is steeped in history, with roots dating back to 1798 when the secretary of war authorized the wearing of a blue uniform USMC Dress Belt US Marine Corps Staff NCO Parade & Ball Dress Blues White Belt With Buckle Dark Hoco Blue Lace Dress Navy Blue Semi Formal Dress Mouccy Women's Lace Prom Dresses Long Navy Blue Formal Dresses Elegant Evening Gowns for Women Couture Candy Amazon.com: Navy Blue Formal Dresses Did you know? The Marine Corps' Dress Blues is the only uniform in the U.S. military designated to include the red, white, and blue colors of the American flag. This distinctive uniform