The problem isn’t cash flow — it’s lack of productive capacity and fighting men. You can’t fight a war with an economy based on solar and wind power. You can’t fight battles with woke women and metro-sexual males.
I have several acquaintances in Ukraine. One lost her husband and one lost her father. Ukraine men in the front lines, or who have been in the front lines, have been amazingly brave and with little to back them up. I should say too that a few women (relative to the # of men) have also lost their lives in the front lines of Ukraine.