Giant Squad

The Giants Squad (巨人部隊) is the name given to a group of Giants in the Marine ranks assembled to guard the execution platform to be used for Portgas D. Ace's execution. They consist of at least eight Giants.

History
They were assigned to guard the execution platform. As the war with the Whitebeard Pirates and the Marines began, they were told to be prepared for air attacks after Marco revealed his phoenix Devil Fruit powers. Then, Jozu hurled a gigantic iceberg at them with the intention of wiping them out, but Akainu melted the iceberg first. When Oars Jr. made his move, some of them tried to intercept the larger giant; however, he plowed through the Marine front lines and them as well.

Oars Jr. defeated Lacroix, Whitebeard knocked out Ronse with a single shock-wave imbued punch, and Monkey D. Luffy took down a third one (the one with a scar on the right side of his chest, with a scruffy medium-sized beard, wearing his Marine cap backwards, and wielding a club) with his Gomu Gomu no Gigant Rifle.

Once Shanks and his crew arrived at Marineford to end the war, the Giant Squad, along with all the Marines, stood down on Sengoku's orders. They were severely wounded and incapacitated, tending to one another's injuries.

Members
Lacroix and Ronse are Vice Admirals. The ranks and names of other members are unknown yet.

Anime and Manga Differences
In the anime additional scenes were added of the Giants fighting Oars Jr. as he threw one of the Marine warships at them. The unnamed female giant tried to attack Oars with a spear but was effortlessly knocked back.

Trivia

 * Notably, one of the squad members is female, making her the first female giant to be shown in One Piece.
 * In the anime, the entire squad shares their footstep sound with Bartholomew Kuma.