A while back I ran across General Smedley Butler, a decorated US Marine General during WW I who almost became the fascist dictator of the US (The Business Plot). Instead Butler wrote a slim 33 page booklet called “War is a Racket“. I just read it and you should too. It’s available from Google Books for $2 and from several other sources. I did not find a free copy at Project Gutenberg, but there is a readable copy (HTML) at a Canadian version of Project Gutenberg.