The Ginyu Force (ギニュー特戦隊, Ginyū Tokusentai; lit. "Ginyu Special Squadron") are a group of characters of elite mercenaries working for Frieza to conquer planets, and are part of the Frieza Force.
The members of the Ginyu Force were all special troops of a "High-Level Executive Class"[4] within the Galactic Frieza Army, with Ginyu himself acting as captain of the force and also Frieza's right-hand man.
Creation and concept
The Ginyu Force has some resemblances and references to Super Sentai teams (and by extension, Power Rangers teams): five color-coded warriors, tendencies to pose during battle, role calls and supernatural powers. However, because Akira Toriyama's works usually feature parody, the stances used by the Ginyu Force may be a parody of the stances seen Super Sentai. Some of the recent references to the Ginyu Force's stylistic forms of poses and colorful display comes from Super Sentai series. This resemblance to Super Sentai may be due to Toriyama's son interested in Super Sentai shows as stated by Toriyama in an interview.The Ginyu Force members follow the tradition of Dragon Ball characters being named for puns; in this case, all manner of dairy products: Guldo is derived from "yogurt", Recoome from "creme", Burter from "butter", Jeice from "cheese", and Ginyu is derived from the Japanese word for "milk" (牛乳, gyūnyū).
History
Background

The Ginyu Force
Within the Frieza Force, the Ginyu Force are of "High Level Executive-Class", with positions higher in rank than even Zarbon and Dodoria who serve as Frieza's aids.[6] It seems that Frieza is behind the formation of the Ginyu Force, as Vegeta mocks Guldo in his flashback (back on Planet Frieza No.79) that he only made it to the Ginyu Force because Frieza decided to place him there, or as Frieza himself refers to them while returning from his fight with Nail as "warriors especially selected by him, that there was no chance Vegeta and the 2 Earthlings could have overcome", as he's shocked to not getting their scouters' signals.[7]

Burter and Jeice
Prior to the creation of Dragon Ball: Yo! Son Goku and His Friends Return!! all the textbooks and sources referred to the Ginyu Force as Frieza's only soldiers to be higher in rank than his generals/advisors, Zarbon and Dodoria, however this conception was altered with the introduction/creation of Abo and Kado, an evil brothers duo who was described by both Vegeta and Tarble to be elite soldiers who were once in the same tier as the Ginyu Force and were not sent to fight on Namek due to being on another planet at the time thus surviving for almost 2 decades into the future becoming as strong as their master, Frieza, was in his first form.
Whilst in all the sources and materials prior to Dragon Ball Xenoverse (2015) the Ginyu Force are stated to be Frieza's supreme fighting force and highest among his soldiers in rank, this game has Frieza himself stating that his newly introduced faction, Frieza's Honor Guard, are so strong that only to enroll the candidate (Future Warrior) must be able to defeat the entire Ginyu Force while fighting them all at once, before being examined by Frieza in a match. This game also features a back in time mission which reveals that Guldo was the last addition to this special fighting force and that in order to enroll he had to fight in an entry exam match alongside a partner (the Future Warrior) as any candidate is allowed against Burter, Jeice, Recoome, and Ginyu in the following order before earning their respect and his place among them.
http://dragonball.wikia.com/wiki/Ginyu_Force