Being able to outspend the other side is definitely a good indicator of winning odds. There is some friction of course, but it’s a very rough approximation of h

Being able to outspend the other side is definitely a good indicator of winning odds. There is some friction of course, but it’s a very rough approximation of how much industrial might you can put into the field. And just having money isn’t enough either, you have to be able to spend/convert it into a military power in some way. So it stands to reason that wars will be as expensive as possible. It’s pay to win to a degree.