Question: What branch of armed forces, was the subject of "Battle Hymn of Lt. Calley" a member of?
Sentence (from "Terry Nelson (musician)"): The single, entitled "Battle Hymn of Lt. Calley", was a spoken-word recording with a musical background which discussed William Calley and the incident at My Lai, for which Calley was court-martialed in 1970-71.
Relevant evidence: Yes