Sakura Kingdom

The Sakura Kingdom is a newly formed kingdom, located on Drum Island. Formally the Drum Kingdom, the Sakura Kingdom was formed after Wapol was blown away by Luffy. After which, the people of the kingdom decided to make Dalton the king, who decided the name of the new kingdom should be "Sakura" after Dr. Hiruluk's intentions of uses the sakura to cure all diseases.

The Sakura Kingdom's flag is Dr. Hiruluk's Jolly Roger, which a few sakura sprinkled across the flag. Since raising the Jolly Roger is considered a huge crime, it's possible that the Sakura Kingdom is no longer a member of the World Government, or the Counsel of Kings.