Question: Leopoldo Eleuteri was a flying ace in which deadliest conflct in history?
Sentence (from "World War I"): World War I (WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.
Relevant evidence: Yes