Territory wars allow your guild to take over the server one area at a time. When taking over an area, it has to be owned by the environment or another guild. Territory wars last for up to 3 hours.
When trying to take the area from another guild you will have to partake in battles up to 80vs.80. Territory battles are very similar to DotA (Defense of the Ancients) in that there are two bases and two guilds. When you want to take over an area, your guild will have to bid on the area, the guild with the highest bid will fight the current owners for ownership.
When attempting to take a previously unowned land, your guild must bid on the territory. In the case of multiple bids, the guild with the highest bid will win. The guild that wins bidding will then have to clear the entire territory war map of monsters, including a boss located in the opposite base, within the allotted time.