First articulation of the WG’s balance-of-power doctrine (the Three Great Powers: Yonko / Seven Warlords / Marine HQ). The doctrine recurs as the structural backbone of the world’s politics (Warlord system, Marineford, the dissolution of the Warlords). Also the first hint that an authority above the Marines actively engineers world stability — seeds the apex-WG / Mariejois power-structure thread.