One Piece: Rise of Pirates, The Third Age
After the Death of the second King of Pirates, the balance was overturned and Marines took over the seas. The Yonkou were all destroyed and once the Shichibukai had performed their use, were executed as well. Once the powers were out of their way, they seized full controls of the ocean and slaughtered all those who would commit crimes on the sea for fear of a new coming. Fleet Admiral Nomikomu will see to it that Pirates are erased from existence.