Marineford

Marineford is the main headquarters of the Marines. It is where Fleet Admiral Sengoku and the three Admirals resided, along with many Vice Admirals and lower officers, when they aren't assigned to another base. The city surrounding Marine HQ is inhabited by the families of Marine soldiers. Marineford is one of the three great powers, alongside the Shichibukai and the Yonkou. It is situated near the Sabaody Archipelago, and lies directly next to Mariejois on the Red Line. The only safe way to reach Marineford is through the Gates of Justice.