Why did William Golding Write The "Lord of the Flies"

William Golding wrote the book "Lord of the Flies" in the early years of the Cold War and the Atomic age. He wrote this book because he thinks that humans are natrually evil.  He also wrote this book because he thinks that everyone is an evil savage and because the main theme is the conflicting impulses that individuals have towards civilization. He also wrote this book because he was in WW2 and it gives him ideas and themes of what to write about from the past.