History of the United State's Smallest Uniformed Service

From a channel Lumen includes in full: The History Guy (Lance Geiger) tells lesser-known episodes of military, naval and American history in researched narrated segments that list their sources.

A 8-minute video from The History Guy: History Deserves to Be Remembered's catalogue; the title names its topic.

Video by The History Guy: History Deserves to Be Remembered, played through YouTube's embedded player.