Ackbar was a series of events where the Kingdom of Dustari was utterly destroyed by a suprise attack by Samurai, Pirate Crew, Karakaze Troupe, and there were even reports of members of the Zormite Empire fighting the battle.
The destruction of Ackbar occured when Dustari's Regent, King Kamuii Nightrose, was invited to a peace talk with the Karakaze Troupe. Unlucky for the Dustarian King he sat on a trap seat which jettisoned spikes upwards to impale the bomy with the immortal words "Ackbar"