United States Marine Corps off-base, except in transit to and from their place of duty and in the event of an emergency. As in any military organization, the official and unofficial traditions of the Marine Corps serve to reinforce camaraderie and set the service apart from others. The Corps' embrace of its rich culture and history is cited as a reason for its high "esprit de corps". The "Marines' Hymn" dates back to the 19th century and is the oldest official song in the United States armed forces. The Marine motto "Semper Fidelis" means "Always Faithful" in Latin, often appearing as "Semper Fi"; also
Flag of the United States Marine Corps designated gold and scarlet as the official colors of the U.S. Marine Corps. These colors, however, were not reflected in the official Marine Corps standard until 18 January 1939, when a new design incorporating the new colors was approved. The design was essentially that of today's Marine Corps standard. For a brief time following World War I, the inscribing of battle honors directly on the colors of a unit was in practice, but realization that a multiplicity of honors and the limited space on the colors made the system impractical, and the procedure was discontinued. On 29 July 1936, a