As a child, Luke Turner was obsessed with the Second World War. He spent hours watching Sunday war films, poring over stories of derring-do and relishing in birthday trips to air museums. Lying in bed beneath Airfix fighter planes suspended from his ceiling, he would think about the men that might sit in their cockpits, and whether he could ever be one of them. Now, as an adult who has come to terms with a masculine identity and sexuality that is...