Question: How many years did the author of Lone Survivor spend in the navy?
Sentence (from "Lone Survivor (book)"): Lone Survivor: The Eyewitness Account of Operation Redwing and the Lost Heroes of SEAL Team 10 (2007) is a non-fiction book written by Marcus Luttrell with assistance from novelist and ghostwriter Patrick Robinson and published by Little, Brown and Company.
Relevant evidence: Yes