Immortan Joe, riding War Bike, into battle

Valhalla!!! A young Immortan Joe before he became King of the Citadel was merely a wanderer across the wasteland much like Max Rockatansky. With every fight won, he gathered a band of loyal marauders who lacked his oratory gifts for the art of the speech. He told stories based on his childhood of an afterlife for warriors who are blessed with never ending battle called Valhalla. Slowly but surely his cult grew and grew until he successfully invaded the Citadel and overthrew its previous egalitarian inhabitants.