U.S. MARINE CORPS UNIFORMS QUICK REFERENCE VISUAL GUIDE A colorized photo of a US Marine in Blue Dress uniform, circa 1917 : r USMC Formal winter dress uniform, Air Force officer PICRYL Public Domain Media Search Engine Public Domain Search A Marine SGT. is dressed in a military police (MP) winter uniform. He is wearing dress blue trousers, a brown jacket, a white barracks cap, a police badge, an MP arm band Changes to the Marine Corps uniform policy have been NARA & DVIDS Public Domain Archive Public Domain Search