Marines adopt new uniform rules for cammies, dress blues USMC MALE ENLISTED BLUE DRESS BLUE WHITE DRESS UNIFORM ("A" AND "B") Marines in dress blues hi res stock photography and images Alamy 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 MALE OFFICER BLUE DRESS BLUE WHITE DRESS UNIFORM ("A" AND "B") Dress Blue Charlie's > Dress Blue Delta's don't @ me!