officers and CPOs during the summer months and in tropical climates. The uniform reintroduced a khaki service coat worn with a black necktie and shoulder boards. It was intended to provide a more practical alternative to the Service Dress Whites and a more formal alternative to the Service Khakis. This uniform was frequently worn in public by Adm. Mike Mullen during his time as Chief of Naval Operations and Chairman of the Joint Chiefs of Staff; Mullen was seen wearing this uniform with the jacket removed in the photograph in the White House Situation Room during the Navy SEAL raid on Osama bin Laden's compound. In October 2012, cost considerations led to the cancellation of the full-scale reintroduction of the uniform, and the uniform was dropped from the Navy. Service Dress Blue Yankee The rarely seen Service Dress Blue Yankee uniform replaced the dark trousers and black shoes of Service Dress Blue with white trousers and shoes from the white uniform. Prescribed for officers. Winter Blue The Winter Blue uniform was authorized for all ranks. Due to its near-black color, it was called the "Johnny Cash" uniform (a reference to the song/album Man in Black by the singer of the same name). It was a long sleeve black button-up shirt and black belt and trousers (optional skirt for females), with the headgear either the combination cover (all E-7 and above, female E-6s and below) or white Dixie Cup (male E-6s and below). Garrison caps were an optional secondary headgear, allowed to be worn for all ranks. As a service uniform, ribbons and badges were worn, and officers and chief petty officers wore metal collar insignia, while enlisted E-6 and below wore just the rating badge on the left arm. All men wore ties, females necktabs, with an optional silver clip for sailors at the rate of petty officer first class and below, others a gold clip. The Working Blue variant omitted the tie and ribbons. Working Khaki The Working Khaki uniform was worn by officers and chief petty officers, primarily aboard ship or in selected working areas at bases ashore. Originally it was simply the Service Dress Khaki uniform worn without the coat and tie. Similar to, but less formal than, the Service Khaki, it consisted of a short or long-sleeve khaki uniform shirt, with warfare insignia and badges (i.e. command pins, nametags, etc., but no ribbons) worn on the