At the cost of his own life or not, I think a Rinnegan no Naruto will perform the Rinne Tensei and bring all the casualties of war back to life.
I mean this is NARUTO. The guy who made it possible for Gaara to be brought back from the dead!
Now that he knows there is a way to do it, he will surely attempt it, that goes without saying don't you think?
I mean this is NARUTO. The guy who made it possible for Gaara to be brought back from the dead!
Now that he knows there is a way to do it, he will surely attempt it, that goes without saying don't you think?