Israel is currently failing to learn and implement the moral success of nuking Japan.
The Japanese have not gone about murdering anyone since they were nuked. Unlike the many conflicts since, in which total defeat of the will if the populace to ever wage war again was not achieved. In essentially every conflict since, the putative loser has gone home to lick their wounds, harbor their grievances, and attack again, costing many more lives than total defeat would have caused.
This is not an argument for nuking any given opponent. It is an argument for using just enough force to defeat the will of the population to ever start wars again.
That strategy saves the most lives in the long run.
Total Victory is MORAL.
...or at least WINNING.