Question: The author of Le Martyre de saint Sébastien would later become a soldier in which war?
Sentence (from "Le Martyre de saint Sébastien"): Le Martyre de saint Sébastien is a five-act musical mystery play on the subject of Saint Sebastian, with a text written in 1911 by the Italian author Gabriele D'Annunzio and incidental music by the French composer Claude Debussy (L.124).
Relevant evidence: Yes