Culture of the United States Marine Corps reminder to provide good order and discipline. The Marines' Hymn dates back to 1919 and is the oldest official song in the U.S. Armed Forces. It embraces some of the most important battles of the Corps at that time, including Chapultepec and Derna. Subtle changes and unofficial verses have been added as the history of the Corps grew. The official Marine Corps emblem is the Eagle, Globe, and Anchor, sometimes abbreviated "EGA". Adopted in its present form in 1868 by Commandant Jacob Zeilin, it derives partially from ornaments worn by the Continental Marines and the British Royal Marines, and is
Military Secretary to the Commandant of the Marine Corps of the Commandant, and performs other duties as the Commandant may direct. In order to perform the multi-faceted duties of the Military Secretary, the Marine must be well versed in all aspects of the United States Marine Corps, the United States Department of Defense, and the United States Government. Comparable positions in other branches of the military are: The Military Secretary serves as a direct advisor to the Commandant of the Marine Corps. The Military Secretary is primarily responsible for filtering and directing the flow of information to the Commandant, keeping the Commandant abreast of situations impacting the Marine Corps,