Yes they do...
They fight the Cullens (except Edward) and all the Werewolves (except Jacob)
The Cullens team up with the werewolves in Eclipse in order to ensure a sure win against the newborn vampires. The Cullens team up with the werewolves only after the Denali clan refuses to back up the Cullens in the fight against Victoria's newborns. If the Cullens had not teamed up with the werewolves then they would have won but some of them might not have survived the fight.
Victoria is coming back to fight the Cullens because she wants to kill Bella. She makes an army of vampires and they go and fight the Cullens and the werewolves. The cullens win and Edward kills Victoria.
The resolution in Eclipse, by Stephanie Meyer would be that the Cullens, teamed with the werewolves, won the fight with the newborn army, and Edward and Seth Clearwater kill Victoria and Riley. ^^hope this helped(:
yes the wolf pack help the cullens to kill the newborn vampires
No, Edward kills Victoria after they fight. Jacob and the other wolves do help the Cullens attack the other newborn vampire army that Victoria raised.
they have a fight between Victoria and the cullens
in new moon Bella has to pick a side and in eclipse the werewolves and cullens come together to kill Victoria!
After Edward killed James in Twilight. Victoria seeked revenge. In New Moon she got Laurent to go see if The Cullens were still interacting with Bella. In Eclipse Victoria created the New Born army to fight against The Cullens so that she can kill Bella Swan. The Werewolves and the Cullens fight together against The New born Vampire army , Because they both want to save Bella. Hope that Helped =)
they tell you about seth and Leah clearwater and how they became werewolves too. also, Victoria's looking for Bella again and she found her and the cullens need to fight Victoria, so jasper (who's had a lot of experience in war) teaches the cullens how to fight. at the end, the cullens along with the pack of wolves including Jacob, seth, and Leah, kill Victoria.
Yes all the cullens fought except for edward
it depends on who your talking about, the cullens, edward and bella, like it all depends on who your talking about.
there i a big fight between the werewolves+Cullens vs. Victoria and some newborns. Bella and Edward get engaged.