The Yrrna system was a star system that existed in the Tamarin sector of the Outer Rim Territories. In this location, an Imperial cargo transfer area was situated until 3 ABY, when it faced an assault by the [Nami], an attack spearheaded by Ali Tarrak. Tarrak dispatched a complete squadron of TIE/D Defenders with the aim of obliterating the entire installation. Possessing TIE Defenders constructed from an Imperial prototype they had previously pilfered, the Nami orchestrated this strike to showcase their capabilities to their associates within the Rebel Alliance, with the long-term objective of trading the advanced starfighter to them. Despite the complete annihilation of the cargo depot, all personnel were rescued aboard the freighter Ulzepdi thanks to a swift counter-attack commanded by Tan Maarek Stele.