Keyblade War

Just been thinking about what the keyblade war was like. What did they wear? How did they fight? Did they use special Keyblades? And How come Kingdom Hearts is called "Kingdom" hearts? What Kingdom Hearts was United kingdom bonded by the light. What if they were all Knights, which explains the armor in Birth By sleep. Who knows, its a lot to think about. Anyways, I was gonna do a Organization XIII member cause my boy I wanted to do a Keyblade master fo realz.