If you are playing a WAR you are a "tank." Tank is just a slang word that is used in MMORPGs. It means that you are the person who should be taking most of the hits when you are fighting something in a party. That is why you have provoke. You should make a macro so that you can use provoke every 30 seconds to keep your party alive. If you are unfamiliar with this you might want to look for other WAR's on your server and see if they can give you a crash course in holding hate (keeping the mobs attention on you.)