User blog comment:DerpyDoodle/The Plotholes of One Piece/@comment-2226235-20140815233531/@comment-9022101-20140816141754

Though the ice thing makes no sense, the Marines that he reanimated hadn't died at the Paramount War. A number of them were shown in a cover art when they showed all the young Marines (the bear, the guy with a heart-shaped head, guy who looked like Frankenstein). We don't know how they died or when.