Dracule Mihawk

Dracule "Hawk Eyes" Mihawk is a world-famous pirate who holds the title of "Strongest Swordsman in the World". He was one of the Seven Warlords of the Sea, the first revealed and formally introduced, until the group's dissolution. Defeating him is Roronoa Zoro's current goal. Mihawk's place of residence is Kuraigana Island, on which he served during the two-year timeskip as Zoro's master in his swordsmanship training. Mihawk can be considered a supporting antagonist of the Baratie Arc and one of the major antagonists in the Marineford Arc, where he took part in the Summit War of Marineford on the side of the Marines, along with most of the other Warlords of the Sea.