Ask Huo Ying, which episode of the Third Endurance World War did you watch? animation
Kakashi gaiden in the 339th sentence.
Kakashi is very dissatisfied and will be late for every reunion for various reasons. He thinks that ninjas who don't follow rules and disciplines are equivalent to waste.
This task is special for Kakashi, because he finally got the qualification of forbearance, but he didn't prepare any gifts for Kakashi without knowing it.
Kakashi, as the captain this time, attacked the enemy head-on with his newly created Thousand Birds, but he was injured.
Expanding information The fuse of World War III was originally the disappearance of three generations of wind shadows. As for the real cause of this war, it is probably that many years have passed since the last war, and all major countries have recovered their vitality and are ready to further carve up fire nation's resources.
The third world war of forbearance is the land of earth VS the land of fire (forbearance VS konoha)
The famous battle was the Battle of the Bridge without Gods-Ren Yan Village sent thousands of ninjas to invade the border of fire nation through Cao Ren Village. Namikaze Minato and his class accepted the task of destroying Ren Yan's supply line-the bridge without god. This task brought Kakashi, who wrote round eyes, and the man who destroyed the world for love.