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 at state dinners and other official functions, and leads the color guard at various parades and ceremonies. The following streamers are authorized, in order of precedence: Each unit in the Corps of battalion-size or larger also hold an organizational color (which makes up the unit's colors along with the national flag). It is usually identical to the Marine Corps battle color, though the scroll will have the unit's name instead of "United States Marine Corps". It will also bear the streamers authorized to the unit, or scarlet and gold tassels if none are authorized. Each Corps unit has a designated