Deputy Admiral Ronse is the deputy Admiral of the Marines and also part of the Monster Squad
Appearance
E Ron in his youth as a Marine.
Ronse is a giant wearing an object that looks like a medieval helmet, and has long black hair. His Marine robe is white with red wrist cuffs and a pair of steel pads on his shoulders. Inside the robe, he wore gray clothes with brown pants. At his waist, he wore a giant fur belt used to store weapons. Ronse's face was shown when Whitebeard smashed his helmet, but only briefly showed it.
Personality
He is also confident in his abilities, such as when he advanced to confront Whitebeard directly. It is not known whether Ronse believes in moral justice or absolute justice.
Ability and Strength
"Ron vs. Vista and other pirates.
As a vice admiral, Ronse had command over his lower-ranking subordinates in the Marines. Ronse is a giant, so it gives strength and endurance that is many times greater than the average human.
Weapon
Ronse used a giant ax to fight, during the war, Whitebeard destroyed it with the power of the earthquake.
Haki
Further information: Haki
It is said that all vice admirers have rights, so Ronse can also use this ability. However, he had never been seen using it.
History
Ronse was seen guarding in front of the execution stage with Deputy Admiral Lacroix and other members of the Giant Squad when Sengoku told the world about Ace's past. Ronse was later seen with members of the Giant Squad. When the Whitebeard Pirates and their alliance invaded Marineford to help Ace, Ronse took part in the fight.
After Oars Jr. defeated by Bartholomew Kuma, Ronse sent an unexpected attack towards Whitebeard, but ended easily defeated by the Gura Gura no Mi who destroyed his helmet.
Source : WIKIA ONE PIECE