When observed from a narrative standpoint, the Wano Country Arc is a huge milestone in Eiichiro Oda's One Piece, as it concludes the Yonko Saga and brings the Straw Hat Pirates' time sailing with Kin'emon and Momonosuke to a close. Beyond this, the climax of this arc, which featured a massive battle to liberate Wano, was an era-defining conflict that forever altered the balance of power on the seas and set up the Final Saga.