I suspect he may have had a preemptive opinion on that even though he wasn't around any more when it started.
“WAR is a racket. It always has been. It is possibly the oldest, easily the most profitable, surely the most vicious. It is the only one international in scope. It is the only one in which the profits are reckoned in dollars and the losses in lives.” - SB
We are told a version of things, and maybe that version is even mostly true, but I'm less sure about this now then I was when I was a kid in grade school.