Hm. Perhaps taking out the Mindcrack Protectorate is just an early step in a larger plan. Maybe Earth is the final prize. Destabilize and then conquer Minecraftia, taking all the best knowledge and resources from both factions. The Black Armours could be a breakaway group, maybe bitter at both sides for things done in the Severence Wars, maybe corrupted by whatever strange force decimates Minecraftia at long intervals. Maybe the connection to Earth hastened it or did something otherwise strange.

/more random stuff.