MasterDickmanto Naruto is about to get the mission of his life. Well, while the amount of fighting might constitute war but the entire war action ended within a matter of a few months. With in those few months the Akatsuki lead by Madara Uchiha seemed to have the upper hand. Of course he would never been able to do such a task if it was not for Killer Bee, the Jiniruki of the Eight-Tailed Ox demon giving him training as to control the demon's chakra and accidentally slipping out to Naruto about the war. Once he heard of the war he rushed into action and found his way to the Akatsuki base and once there he met up with Sasuke Uchiha.
Yeah, Usually never even bother. If you spend a lot of time leveling him up he can do some crazy damage with some of the limits, but it's pretty inconsistent and not really worth it.