You can earn 'Honor Points' by killing units of enemy factions or destroying their buildings. The honor points you gain is decided by how many units you killed and the level of the units you killed. The more units you kill, and the higher level they are, the more honors you gain.

Even the smallest battle you engage with an enemy faction's player contributes to the overall faction wars. However, keep in mind, the honor points will be significantly discounted if you attack someone which is much smaller than your size!

Note that the honor points can only be earned from battling an enemy faction's players. No honor will be rewarded if you pick your own faction's player as a target (this principle doesn’t apply to the unified kingdoms).