WotLK Help, my warrior doesn't have Defensive Stance!

[Jakoloonyas]

I have played with my warrior a while and i reached level 15 and i can't find defensive stance in my Spell Book or the Warrior Trainer, and i want to tank some dungs and i can't because of that.

[skullatbash]

you get it via quest: https://wowwiki-archive.fandom.com/w...2391384#Quests