"Once Green, Always Green" . . . . "1942Z"^^ . . "555th Fighter Squadron"@en . . "The 555th Fighter Squadron (555 FS) is part of the 31st Operations Group at Aviano Air Base, Italy. It operates General Dynamics F-16 Fighting Falcon aircraft conducting an air superiority mission."@en . "1945Z"^^ . . . "Triple Nickel"@en . . . . "Green"@en . . . .