The nomadic warrior species known as the Vagaari employed Vagaari warships circa 27 BBY. These starships possessed an unusual outer layer, consisting of Geroon slaves trapped inside zero-g plastic bubbles, effectively forming a biological defense. However, in engagements such as the Skirmish in the Crustai system and the battle of the Geroon homeworld, these warships proved ineffective against the Chiss Expansionary Defense Force, who were able to target the gaps between the bubbles at close range.