This article contains spoilers from One Piece’s Elbaf arc.
Summary
- The Admirals are the strongest in the Marines with powerful Devil Fruits and Haki.
- Sengoku, Akainu, and Garp are top contenders for the title of the strongest Marine.
- Garp, known as the Hero of Legends, is hailed as the strongest Marine in One Piece history.
The Marines are the military face of the World Government, known to be incredibly strong in One Piece. Their strength is absolutely immense and fans know their strongest members to be capable of going head-to-head with the likes of the Emperors in combat.
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Although the Marines aren’t usually as strong as the elite pirates, there are certainly some among their ranks that can rival even the strongest. Fans know of quite a few powerful Marines who have made history in One Piece, and some others who are on course to making their own name and standing alongside the legends of the world. But, there is one individual in the Navy who stands on top of all else.
The Marine Powerhouses In One Piece
The Admirals Stand At the Very Top
It is no surprise to know that the Admirals of the One Piece world are the strongest of the Marines. They are widely known to be the military face of the World Government, and their strength is such that they can’t be easily taken down by anyone in the story. With overpowered Devil Fruits, and majestic Haki, the Admirals are truly a force to behold. At the same time, fans also know that the Admirals are some of the most wanted people in the world, thanks to the Cross Guild.
We have to destroy the Cross Guild and do so quickly! — Sengoku
Their power is such that they have a 3 Crown Bounty on their heads, which amounts to 3 billion berries. So far, Oda has already established the Admirals as elite fighters in the One Piece world.

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However, fans know very well that even among them, strength isn’t equal. There are some Admirals that are strong, and others that are elite. There are also some characters, who, despite not being Admirals, stand on top as the strongest in the Navy.
Who Is The Strongest Marine Of All Time?
There Are Three Major Contenders For The Greatest Marine Of All Time
When it comes to the strongest Marine, fans would, naturally, expect one of the Admirals to take the spot. However, none of the Admirals actually qualifies for the spot of the strongest. Three major contenders have been highlighted in the story so far for this position.
- Sengoku: Fans know Sengoku to be the former Fleet Admiral. It was during his time as Fleet Admiral that he reached his peak strength. Sengoku is a user of the Mythical Zoan Hito Hito no Mi, Model: Daibutsu. He also has all three Haki types, and in his prime, he could even fight the likes of Whitebeard and Roger. He’s certainly a contender for the strongest.
- Akainu: The current Fleet Admiral, Akainu is very powerful, and he holds the power of the Magu Magu no Mi, a Logia ability that allows him to generate very high offensive power in combat. Akainu also has strong Haki. He’s most definitely gotten stronger over the timeskip, and fans know that he is a contender for the strongest Marine. However, he hasn’t done anything that justifies him standing on the same level as Sengoku and Garp.
I thought he had retired? For real? The Marine of the Legends is here! — Pirates upon Garp’s Attack On Hachinosu
- Garp: By far, the strongest Marine in the history of One Piece is none other than Garp. Fans know him to be renowned in the world as the Hero of the Legends, and his strength is such that he could match even Roger in combat. Garp doesn’t have any Devil Fruit. Yet, his Haki is so powerful that he can level mountains and destroy islands with ease. Garp is a total monster and a fighter worthy of the title of “strongest in history.”
One Piece is available to read via Viz Media. The series can be read by the fans officially and for free on the Shonen Jump and the Manga Plus apps. The release date for the next chapter of One Piece, One Piece 1144, is set to be March 30, 2025.

- Release Date
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October 20, 1999
- Network
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Fuji TV
- Directors
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Hiroaki Miyamoto, Konosuke Uda, Junji Shimizu, Satoshi Itō, Munehisa Sakai, Katsumi Tokoro, Yutaka Nakajima, Yoshihiro Ueda, Kenichi Takeshita, Yoko Ikeda, Ryota Nakamura, Hiroyuki Kakudou, Takahiro Imamura, Toshihiro Maeya, Yûji Endô, Nozomu Shishido, Hidehiko Kadota, Sumio Watanabe, Harume Kosaka, Yasuhiro Tanabe, Yukihiko Nakao, Keisuke Onishi, Junichi Fujise, Hiroyuki Satou
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Mayumi Tanaka
Monkey D. Luffy (voice)
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Kazuya Nakai
Roronoa Zoro (voice)
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