One Piece Manga Chapters: 550–580 Anime Episodes: 459–489 Saga: Summit War Saga Director (Anime): Sakai Munehisa (Primary) Significance: Widely considered the first major climax of the One Piece series, shifting the tone of the story from an adventure to a global war.
Episodes 457–459 are technically the "Amazon Lily" aftermath and the lead-up to Impel Down's conclusion, but they are often grouped with Marineford because they cover Luffy's arrival at Marineford. The main battle begins at Episode 460 . marineford arc episodes