service were differentiated by coloured puggarees or wide bands around the base of the crown (blue and red for artillery, khaki and green for mounted rifles, khaki and red for infantry, blue for engineers, yellow for Pay Corps, khaki and white for Army Service Corps, cherry-red for the Medical Corps and maroon for the Veterinary Corps.). The hat was worn to a certain extent during World War II, although often replaced by more convenient forage caps or berets. After being in abeyance since 1960, the hat was reintroduced in 1977 for ceremonial dress, where it was usually worn with a version of the khaki "no 2" service dress of the British Army. Officer cadets and the New Zealand Army Band wear this headdress with a scarlet and blue full dress uniform. In 2012 it was announced that this form of campaign hat was to be replaced for general wear by the "Mounted Rifles Hat"; a headdress resembling that of the Australian Army but without the turned-up side rim. The historic "Lemon Squeezer" has however been retained for use by honour guards and other limited categories on special formal occasions. United States Armed forces The hat worn by male United States Army drill sergeants is olive drab in color with a golden Great Seal of the United States on a disc centered on the front (infantry drill sergeants have a blue disc behind the seal); this is the same insignia as traditionally worn on the Service Cap and the Dress Cap. Female drill sergeants in the Army do not wear a campaign hat but instead wear a hat resembling an Australian slouch hat. Originally beige in color, in 1983 the color was changed to green with the style remaining unchanged. The 133rd Field Artillery Regiment of the Texas Army National Guard wears the Fort Sill style Artillery Campaign Hat during formal functions, such as the annual Saint Barbara's Day Ball. Male and female United States Marine Corps drill instructors and Primary Marksmanship Instructors wear similar campaign hats with a matte black Eagle, Globe, and Anchor centered on the front; the same insignia is worn on their olive drab combination hats. While US Marine Corps officers wear a scarlet and gold cord around the hats and generals wear a solid gold cord, enlisted Marines no longer wear cords around the hats. The US Marine Corps campaign hats were introduced on 20 July