A Marine Base, or a Marine Home Base (海軍基地 Kaigun Kichi?) is a home headquarters in local areas of the sea. Marines would stay in the base and patrol the local area. The base houses all weapons, ships, important documents, and artillery. The bases have living quarters with bunkbeds and a kitchen and common area. Most bases have numbers. Some bases are attached to major port cities, and thus bear only the city's name. Of the bases with numbers, these seem to be either Marine Branches (海軍支部 Kaigun Shibu?) or the larger Marine Grand Line Branches (海軍
List of Marine Bases
- 16th Branch (East Blue)
- 77th Branch (East Blue)
- 80th Branch (West Blue)
- 153rd Branch (Shells Town, East Blue)
- Loguetown Marine Base (East Blue)
- Marine Headquarters (New Marineford, New World; Marineford, Paradise (former))
- G-1 (Marineford, Paradise; New Marineford, New World (former))
- G-2 (Grand Line)
- G-3 (Grand Line)
- G-5 (New World)
- Sabaody Archipelago GR 66 Marine Base (Grand Line)
- Marine Penitentiary (Grand Line)
- 8th Branch (East Blue)
- Moore's Marine Base (Grand Line)
- G-8 (Navarone Island, Grand Line)
- Trap Tower (Grand Line)
- Hand Island Marine Base (New World)
- Nebulandia Marine Base (New World)
- G-F (Fron Island, New World)
- One Piece Manga and Anime — Vol. 1 Chapter 3 (p. 6) and Episode 1, Branch 153 is referred as a "Marine Base".
- One Piece Manga and Anime — Vol. 1 Chapter 3 and Episode 1, Branch 153 is referred as "Marine 153rd Branch".
- One Piece Manga and Anime — Vol. 60 Chapter 594 (p. 5) and Episode 511, G-5 is referred as the "Marine Grand Line 5th Branch".