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
Organization of the United States Marine Corps Organization of the United States Marine Corps The United States Marine Corps is organized within the Department of the Navy, which is led by the Secretary of the Navy (SECNAV). The most senior Marine commissioned officer is the Commandant of the Marine Corps, responsible for organizing, recruiting, training, and equipping the Marine Corps so that it is ready for operation under the command of the unified combatant commanders. The Marine Corps is organized into four principal subdivisions: Headquarters Marine Corps, the Operating Forces, the Supporting Establishment, and the Marine Forces Reserve. The Operating Forces are further subdivided into three categories: