After this war the Hidden Leaf > all other villages by far!!!!
So the war is over, Madara and Obito are defeated, the Juubi is destroyed, there is peace and Naruto is Hokage from the Hidden Leaf.
But after a while, the other villages start to fight each other again. War is a human thing, sadly.
So let's say an alliance from the Land of Sound, The Land of Water and the Land of Wind is ready to attack Konoha with thousands of shinobi. Well, the only Naruto has to do then is just 'tapping' some hands and so give everyone some Kyuubi chakra from him. I mean, he just can let the children attack the enemy with Kyuubi mode, even that would be enough...
What I am trying to say is: The Hidden Leaf can now sh*it on everyone else! They are bawses now.