Marines' Hymn

The Marines' Hymn, also known as The Halls of Montezuma, is the anthem of the US Marines. It is heard playing on the Enclave Radio, and also in Fallout 4 after the Sole Survivor's speech on a recruitment radio beacon. The arrangement used in Fallout 3 was done by Kelly Richmond and can be found on Proud and Spirited (WSR171), which is only available for movie/TV/game licensing from Westar Music.

Background
The Marines' Hymn is the official hymn of the United States Marine Corps. It is also the oldest official song in the United States military.