Wars are never climactic. There is no final battle between good or evil. As Jake pointed out, at first people at war think of it as just a comic book battle or a chess game, where in the end, good triumphs over and evil bites the dust. There is a lot of high fives, celebration.... etc....
But in real war, as Jake points out, turns out to be the one who poison's people's lakes, burns farms... etc.
No clean climactic battle.
If there was ever a climactic battle in Animorphs, I'd hate K.A for making it ANOTHER video game war story.... where everything ends like cotton candy.
My grandfather was part of a war between Americans and the Japanese here in the Philippines. Part of the HUKs in case anybody knows about Philippine history (which I doubt). He lost a lot of friends/body parts of friends in that war, I believe, and I swear, he NEVER SPOKE again. One word, two words, no more than that.