ADMIRAL

Admiral
The three Marine admirals (before the timeskip), from left to right: Kizaru, Akainu and Aokiji.
Statistics
Japanese Name:大将
Romanized Name:Taishō
Admiral is the second highest rank in theMarines organization, senior to a vice admiral and junior to the fleet admiral. As part of the Three Great Powers, the three admirals are amongst the most powerful characters in the series.[1]

Abilities

The admirals are crowned the World Government's "Greatest Military Powers" (最高戦力, Saikō Senryoku?), and are the strongest individual fighters within the World Government and the Marines. These three admirals are respected and feared amongst the entire world.[1][2]
As seen in Sabaody Archipelago, the mere presence of just a single admiral was enough to cause a panic on the island and make the entire population flee from the island, including the Eleven Supernovas;[3] the fact that Monkey D. Luffy challenged all three of them brought great shock to witnesses.[4]Other notable examples of the admirals' reputation is Nico Robin from the Straw Hat Pirates. Related to her childhood trauma, she constantly loses her grip and starts panicking whenever an admiral is around, this being significant as she rarely panics even in most of the dangerous situations.[5]Another example would be that Akainu's presence alone was enough to deter theBlackbeard Pirates from making a trade with the Marines for a Marine Battleship, and effectively scared the Blackbeard Pirates off the island they were briefly inhabiting.[6]Additionally, Aokiji's resignation has left a very detrimental impact on the Marines' military strength.[7]

Three Admirals of the Golden Age of Piracy

The three admirals combine their Busoshoku Haki.

Living up to their statuses as the strongest individual fighters of the World Government, all three of the admirals that were active before the end of the Battle of Marinefordpossess tremendous levels of power in various fields of combat.
Being admirals, the three are capable of using Haki, and showed themselves to be extremely proficient when using Busoshoku Haki together to block Whitebeard's powerful shock wave. All three of them are also able to survive a strike imbued with Haki, despite it nullifying their intangibility, though Aokiji did bleed from the mouth after a sneak attack by Jozu, imbued with Haki, though it made no further injuries; Akainu survived two Haki-enforced slashes in the neck, though he noted the discomfort the strikes made.
The difference in physical prowess between admirals and vice admirals also seems to be drastically high (with the exception of Garp), as one of Whitebeard's quake-imbued punches was enough to incapacitate a vice admiral giant, yet Akainu took two (both of which were also imbued with Haki, further increasing damage) and still had more than enough stamina left to keep fighting. Also, while Whitebeard was able to overpower the strength of a giant with ease, Kizaru and Akainu both managed to hold down his pole-arm by standing on it with a single foot.
However, what makes the three admirals quite formidable is that they all had Logia-type Devil Fruit powers, each representing their respective color. All of their powers are very destructive, even when comped to an average Logia user. They are all strong enough to combat against Whitebeard alone, with Kizaru and Akainu causing him severe harm (albeit that Jozu interfered in Aokiji's fight), as well fighting on par with the top three Whitebeard Pirates commanders, eventually overpowering the said commanders with relative ease,[8] with Akainu even killing one (although Kizaru and Aokiji's opponents were distracted and Akainu's magma has a natural superiority toAce's fire).
All three Admirals are shown to be proficient swordsmen, as Aokiji and Kizaru formed blades from their respective elements and wielded them with great prowess, while Akainu (prior to becoming an admiral) was seen carrying a katana during his younger years.[9] They are also very proficient in hand-to-hand combat, whether combining their skills with their Devil Fruit powers simply through raw strength.
Aokiji's Hie Hie no Mi ability.
Kizaru's Pika Pika no Mi ability.
Akainu's Magu Magu no Mi ability.

Admirals after the Battle of Marineford

After the Battle of Marineford, due to fleet admiral Sengoku's resignation, both Kuzan and Sakazuki were nominated to be his immediate successor. The two of them expended their Devil Fruit abilities in a ten-days long duel, turning the two halves ofPunk Hazard into frozen and fiery wastelands. With Sakazuki's victory and Kuzan's resignation afterwards, the Marines lost a great asset in their military power, and the battle was considered to be world-famous like none other.[10]
Sometime within the two years, two new admirals were appointed to bolster the Marines' fighting force: Issho, who goes under the alias Fujitora and received a special appointment to the rank through aWorld Military Draft (世界徴兵, Sekai Chōhei?), along with a yet-to-be-seen individual who goes by the alias Ryokugyu. Both are considered to be "beasts" by Donquixote Doflamingo.[11] Along with these two, Borsalino (Kizaru) is the sole remaining admiral of the previous generation.[12]
Issho possesses Haki, as do all admirals. He also possesses a Devil Fruit power that he can channel through his sword (though it remains unknown whether or not use of his sword is required), allowing him to manipulate gravity at intense magnitude, capable of crushing his foes into the ground and creating a giant crater as an aftermath.[13] The force is strong enough to drag down meteors from space, which caused even two Shichibukai to express fear towards his power.[11]

Duties

Aside from having control over the thousands of soldiers who rank underneath them, the admirals are the only Marines, along with the fleet admiral, within the World Government who have the authority and ability to issue a Buster Call on any island they deem a threat.[14] They are also the only ones who can grant other World Government agents the permission to use the Buster Call. The admirals' only superiors, aside from the fleet admiral, are the Gorosei and the World Government Commander-in-Chief.[2]
Should a World Noble be opposed or injured, an admiral can be summoned to take down the opposing party in question and/or the assailants who did the damage.[15] Failure is not acceptable.[16]
With sufficient evidence and reason, an admiral can revoke a Shichibukai of his/her title, while pardoning criminals for working under a Shichibukai.[11] Although, in all fairness, this authority is also granted to lower ranking person