But National Moral should count in WW2 also, for these reasons:
1. Germany would have surrendered in 1944, but Hitler lived through the bomb explosion. Remember the reason they wanted to kill him was to end the war, but since he lived, it continued.
2. France surrendered because of the loss of National Moral when Paris fell even though she still had a good deal of her army still intact. After the losses they suffered in WW1, they did not want to suffer the same thing so the French government felt it was better to give up and lose a little bit of land versus suffering as many casulties as WW1. They just did not expect the Germans to occupy as much as they did.
3. Look how low Britian's moral was before Churchill was selected as Prime Minister. If they had kept Chamberlain as PM and the Germans had invaded, just how much fighting would the Brits have done ???
4. Russia, with Stalin in charge, did not let the Russians surrender (since his opinion was the only one that really counted), but if he had died in 1941, would they have thrown the Germans out like they did ???
5. Italy not only surrendered, but switched sides after only losing Lybia and Sicily due to loss of their national will.