The first Kazon sect met by Voyager, which held territory around the Ocampa planet under Maje Jabin and became an enemy when Janeway destroyed the Caretaker's array.
The Kazon-Ogla are a Kazon sect whose territory includes the desert surface of the Ocampa homeworld, where water is scarce enough to be used as currency.
In the Voyager pilot Caretaker their leader Jabin is holding the young Ocampa Kes when Neelix tricks Janeway into helping him free her. The Ogla want the technology of the Caretaker's array, and when Janeway decides to destroy it rather than let them have it, their ships attack. Jabin tells her she has made an enemy.
The sect returns in Initiations under First Maje Razik. Chakotay is captured after killing an Ogla warrior in self-defence and becomes entangled with Kar, a boy who must earn his adult name by killing him. The episode shows the harsh code by which Ogla youths are raised.