The destruction of Kijimi took place in 35 ABY, after the escape of the Resistance operatives off of Kijimi when Darth Sidious ordered Allegiant General Enric Pryde and the Sith Eternal to destroy the First Order occupied planet.
Shortly after the duel on Kef Bir, a crew of Resistance members, except for Jedi apprentice Rey, returned to the Ajan Kloss base in defeat. Soon after, they learned of Leia Organa's death.
Sensing Organa's death and Ben Solo's redemption, Darth Sidious contacted First Order Allegiant General Enric Pryde to launch the Sith Eternal plan. After Pryde pledged himself to the Sith Lord, Sidious ordered him to send a Xyston-class Star Destroyer of the Sith Eternal's fleet, the Final Order, to a world the Resistance was familiar with.
The Sith Star Destroyer Derriphan was sent to Kijimi, and, after Captain Chesille Sabrond gave the command, its superlaser destroyed the entire planet.
The Resistance soon learned about the world's destruction. Due to Organa's death, Poe Dameron was made general. Going to her corpse, Dameron admitted to her that he did not know what to do and said he was not ready. Just then Galactic Civil War veteran General Lando Calrissian arrived, informing Dameron that he, Organa, Han Solo, and Luke Skywalker had also not been ready for their war. After Dameron asked how they were able to defeat the Galactic Empire with almost nothing, Calrissian responded that they had each other.
Learning from this, Dameron made Finn a general, and Finn revealed the droid D-O had some information on Exegol. After learning that Rey sent intel to R2-D2 regarding the map to Exegol, the Resistance developed a plan to attack the Sith fleet while Calrissian and Chewbacca would use the Millennium Falcon to call out for allies.
- Star Wars: The Rise of Skywalker: The Visual Dictionary
- Star Wars: Timelines
- "A Certain Point of View" — Star Wars Insider 220
- Star Wars: The Rise and Fall of the Galactic Empire