Episode 471

"The Extermination Operation Begins - The Might of the Pacifista Army" is the 471st episode of One Piece.

Short Summary
The Pacifista enter Marineford to as part of Sengokou's plan to win the war against Whitebeard. It appears part of Sengokou's plan failed as the all pirates were to be inside the bay but Sengokou gives the order to attack all the pirates allied to Whitebeard outside the bay first. The Pacifista are then activated and destroy most of the allied pirates. Sengouku then goes on to saying that the encircling walls should be activated once all video feeds are cut. However, the prisoners of Impel Down have captured one of the Den Den Mushi so that they could advertise their 'saviour' Captain Buggy. Mihawk's battle with Vista is coming to a hasty conclusion and Luffy briefly encounters an admiral. The episode ends as the captain of an allied crew (Squardo) betrays Whitebeard and runs him through with a sword.