Historic uniform change for female Marines; 'there will be no doubts that they are U.S. Marines in the dress blue uniform' > Defense Logistics Agency > News Article View 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 The U.S.. Marine Corps male officer's blue dress A uniform with sword. Exact Date Shot Unknown NARA & DVIDS Public Domain Archive Public Domain Search US WWII Era ( 1941 1948) :: Uniforms :: Marine Corps Dress Blue Uniform Ships Detachment Early Discharge Diamond Marine Corps Dress Cap with Eagle Anchor Device