Marines' Hymn Heaven's scenes, They will find the streets are guarded By United States Marines. </poem> Marines' Hymn The "Marines' Hymn" is the official hymn of the United States Marine Corps, introduced by the first director of USMC Band, Francesco Maria Scala. It is the oldest official song in the United States Armed Forces. The "Marines' Hymn" is typically sung at the position of attention as a gesture of respect. However, the third verse is also used as a toast during formal events, such as the birthday ball and other ceremonies. Some lyrics were popular phrases before the song was written. The
Sergeant Major of the Marine Corps Sergeant Major of the Marine Corps Sergeant Major of the Marine Corps (officially abbreviated to SMMC<ref name="ALMAR 016/09"></ref>) is a billet, as well as a unique enlisted grade of rank, with a unique non-commissioned grade of rank insignia, in the United States Marine Corps. In the U.S. Marine Corps, sergeant major is the ninth and highest enlisted rank, just above first sergeant, and equal in grade to master gunnery sergeant, although the two have different responsibilities. A sergeant major typically serves as the unit commander's senior enlisted adviser and to handle matters of discipline and morale among the enlisted Marines.