Uniforms of the United States Marine Corps Wikipedia Sold at Auction: WWII Era USMC Marine Corps Corporal Dress Blue Tunic Jacket with Service Stripe & EGA Insignia SGT E5 Dress Blue Chevrons The MARINE Shop 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 Uniform Guide 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