So I gotta lore question about the Lich King; hope this is the right place to post this, but yeah so:
So if the Lich King was created by the Burning Legion to unleash the Scourge in order to help the Burning Legion take over Azeroth, and Arthas fused with the Lich King, and then the Lich King/Arthas was free from the influence of the Burning Legion, what were his motives for then attempting to proceed and take over the world and spread the plague?