In his book entitled "War is a Racket" Smedley Butler argues that the profit of war is counted in bodies and money spent. He also wrote that 21,000 millionaires/billionaires were made from World War I. Is this true? If it is true, how did these people become so wealthy?
"In the World War [I] a mere handful garnered the profits of the conflict. At least 21,000 new millionaires and billionaires were made in the United States during the World War. That many admitted their huge blood gains in their income tax returns. How many other war millionaires falsified their tax returns no one knows."
-quote from an online PDF copy of the book "War is a Racket" by Smedley Butler