At present, players can only attack the other camp, the owner or the town of NPC, for their own town or camp owner also should not attack NPC. Please keep in mind, NPC is generally located in the enemy's cities and towns. PvP server in the hostile camp in your players to enter their cities and towns are free to attack you later. In general the server, an attacker NPC or the owner will make you open PVP status, which makes the hostile camp, players can attack you.
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