Crait Crait was a small salty mineral planet located in a remote sector of the galaxy ' s Outer Rim Territories . Covered with a layer of white salt over its red soil , the planet once hosted a Rebel Alliance outpost during their early rebellion against the Galactic Empire . Many years later , the uninhabited planet became a haven for Leia Organa ' s Resistance , which resulted in a battle between the Resistance and the First Order on the planet ' s surface . Description . Crait was a small , desolate , and uninhabited planet located in a remote star system of the same name . The planet was rich in mineral s and orbit ed one star . A thick crust of white - colored salt covered nearly the entire planet surface , with red - colored rhodocrosite base beneath . Dominated by large salt flats , the planet also featured mountain s , canyons , and deeply sunken water ways — which were possibly home to aquatic creatures . The planet had a Type 1 atmosphere — it was breathable to oxygen - breathers , such as human s . The white salt - covered surface reflected the planet ' s sunlight , which would be blinding at midday . The sodium - containing salt also made the planet surface slippery , hard to travel ; with gusts of wind sending up flumes of white salt . The planet was also inhabited by Vulptices , fox - like creatures with white , crystal line fur that lived within the burrows and tunnels beneath the surface of Crait . History . Imperial Era . During the reign of the Galactic Empire , the early rebel movement — a loose network of rebel cells led in secret by Senator Bail Organa of Alderaan — established a secret outpost on the northern continent of the planet Crait . In the year 3 BBY , one of these rebel groups attacked Calderos Station , a large Imperial facility used as a deep - space waypoint , to weaken Imperial control and cover rebel shipment tracks to Crait . Although the rebels presumed that all data about Calderos Station was erased , Bail ' s adopted daughter , Prince ss Leia Organa , managed to find some old space traffic data which linked Crait and Calderos Station . To discover the identity of the attacker , Leia Organa and her guard Lieutenant Ress Batten traveled to Crait aboard the " Polestar " . After the ship landed on the planet surface , Leia was detained by rebel soldier s as she refused their proposal to leave Crait immediately . Upon being taken to the base , Leia found out that it was her father who was in charge of this facility , and her parent s were secretly organizing a rebel movement against the Empire . The rebel movement eventually turned into a more organized Rebel Alliance , and the Crait outpost was abandoned some time before the Battle of Scarif in 0 BBY , which marked the outbreak of the Galactic Civil War . Later in the Galactic Civil War , Rebel heroes Leia , Han Solo , and Luke Skywalker led the Rebellion to Crait while searching for a location for a new Rebel base . During the search , they encountered Trusk Berinato , a male individual who employed some mining droid s to work in the Mines of Crait . As Berinato showed the site to Leia and Solo , the Empire ' s SCAR Squad had arrived and fought Leia ' s team . However , SCAR squad was forced to limp away and Leia knew that Crait was not a viable location for a new base . First Order – Resistance war . Many years later , some time after the destruction of the Starkiller Base in 34 ABY , Crait became a haven for the fleeing forces of the Resistance , a small military force founded by Leia Organa to combat the First Order . As a result , the planet became a battleground between the two factions , which involved V - 4X - D ski speeder s and the " Millennium Falcon " facing off with All Terrain MegaCaliber Six walker s , First Order AT - ATs , TIE / fo , and TIE / sf space superiority fighter s . Locations . Crait was a desolate and uninhabited world which had neither orbital stations nor spaceport s . Prior to 3 BBY , the early rebellion against the Empire established a secret outpost on the northern continent of the planet . The outpost was still there and became a haven for the Resistance some time after 34 ABY . Additionally , Crait hosted mines to extract the planet ' s minerals . Behind the scenes . Crait was created and developed for , the eighth film in the " Star Wars " saga , which was released on December 15 , 2017 . The planet was first mentioned in " " , a reference guide for the 2016 film " " , written by Pablo Hidalgo and released on December 16 , 2016 . Crait made its first appearance in " Leia , Princess of Alderaan " , a young - adult novel written by Claudia Gray and released as part of the " " series on September 1 , 2017 . First footage of Crait was revealed in the very first teaser trailer for " The Last Jedi " , which premiered during " The Last Jedi " panel at Celebration Orlando on April 14 , 2017 . The real - world location for Crait was , the world ' s largest , located in . According to the film ' s writer and director , Rian Johnson , Crait would " play a key role in the movie . " Crait was also included in " " , Disney ' s attraction . Anthony Daniels reprised his role as C - 3PO for the new sequence , which debuted at and on November 17 , 2017 . Additionally , Electronic Arts made Crait a DLC for the video game " Star Wars Battlefront II " as a " Galactic Assault " map on December 13 , 2017 , coincident with the release of " The Last Jedi " . Crait is the subject of the Marvel Comics title " " , written by Ben Acker and Ben Blacker with art by Mike Mayhew , released on December 27 , 2017 .