Introduction of Guardian
Upon completing your level 75 quest, Dragoons will be able to choose either Guardian or Vanguard as their advanced class. Guardians believe that the key to victory is a good defense, while the Vanguards believe that offense is the best defense.
Guardians are strictly for "guarding" or "tanking", they have the capability to reduce masses amount of damage, as well as boosting their Resistances and Defense significantly. If you wish to be a tank, and not so much have an advantage in PvP, then Guardian is the class for you.