Why are so many people confused about the war in Iraq and the war on terror?

We won the Iraqi war, we are no longer fighting the Iraqi government. We are now fighting the war on terror. Bin Laden said himself that the fight in Iraq is important for their cause...we didn't choose this fight just like WW2...the war came to us on 9/11...and we responded...we took the fight to them...we aren't fighting the war on terror in america, europe, asia, or africa like we are in iraq...where do complaining americans want to fight the war on terror...if they want to pull out of iraq now...and as far as the legality of the war...it was U.N. backed...backed by congress...NOT just Bush...