But a robot war is an endless war. There will always be more robots to fight until the economy is completely exhausted.

Not necessarily. If the factories that build the robots are taken out, for example. Someone (even a robot) still has to build them.

	▲	adrianN 22 minutes ago \| parent \| next [-]
		It turned out to be pretty hard to take out Germany’s factories in ww2.
	▲	dlt713705 2 hours ago \| parent \| prev [-]
		What if the factories are located in foreign countries and the belligerents are only buying off-the-shelf products ? Wars are always bad news and robot wars are very bad news. Many countries will fall into an endless war economy.