(Note: Fan Fiction. Please check guild wiki dot org or guild wars wiki for accurate information and documentation from the game.)
Protector is a title that you can display for prestige and to show your protective Kung fu.
You may have up to three protector titles. They are:
Protector of Tyria - for when you protected all of the objectives and bonuses with your skills.
Protector of Cantha - for when you earn Master's Reward by achieving all of the objectives in a timely manner using your skills.
Protector of Elona - for when you earn Master's Reward by achieving all of the objectives using your skills.
Completing all three protectors, earns you Legendary Protector and this can be an easy and nice title to have in honoring your kung fu skills.