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 USMC Dress Blue Uniform WWII Impressions, Inc. United States Marine Corps Dress Blues Uniform History in the Making Owen Keith Hall in Marine Corps Dress Blues Black and white photo of Owen Keith Hall in the 1940s wearing a Marine Corps dress blues uniform. The dress uniform would have