Here's what's sure: arm manufacturers will get rich and be called patriotic without setting foot anywhere risky. Financial institutions will profit off the repossessed homes of soldiers. Oil and gas will benefit from the increased consumption for war effort and disparition of ecological concerns. And we'll see the usual profiteers insert themselves wherever they can on the endless chain of misery. All that while food production collapses because of climate change, and nothing can be done because of some sociopaths need for domination, on all sides of the conflict.
Everyone else will suffer.