>>508149650an economy cannot be based on war, it can be based on pillaging tho and many ancient tribes lived entirely from pillaging. But the living is is in the pillaging and not the war, if you could scare some farmers into giving you tribute there was no need to do the war part.
Ahem about HItler, his economy was based on not paying debts and in stealing gold, crops and machinery/production from conquered countries. Some said that was not sustainable and it wasnt