An insurrection against the First Order erupted on the world of Jakku in 35 ABY. This happened concurrently with numerous other rebellions throughout the galaxy. This revolt was sparked by a passionate call to action from Resistance General Lando Calrissian, who implored citizens to fight against the First Order from Exegol. The Resistance General Finn initially became aware of the uprising while using a terminal on the light freighter Millennium Falcon.
In 35 ABY, Resistance Generals Poe Dameron and Finn developed a strategy to assault the Final Order, allies of the First Order, on the planet Exegol. General Lando Calrissian and Chewbacca of the Resistance were dispatched aboard the light freighter Millennium Falcon to the Core Worlds to gather support for the impending battle. While not everyone who heard Calrissian's call could make it to Exegol, many subsequently took up weapons against the First Order in various locations across the galaxy. Due to the Resistance's victory in the Battle of Exegol, the First Order Star Destroyers across the galaxy, including those at Jakku, were left without leadership or reinforcements, making them vulnerable to attack.
After the battle concluded on Exegol, Finn boarded the Millennium Falcon and began a scan using a computer interface. As the scan progressed, Finn noticed reports indicating that multiple star systems, including Jakku, were in rebellion against the First Order. He understood that the spirit of resistance, initially sparked by the deceased Resistance general Leia Organa, had now blossomed into a widespread revolt. Finn later informed Dameron about these uprisings. During the uprising, insurgents caused a burning Resurgent-class Star Destroyer to crash close to the Star Destroyer Inflictor in the Starship Graveyard. At his station on Ajan Kloss, the Resistance's headquarters, the protocol droid C-3PO observed reports of Star Destroyers falling from the sky, and announced this to those nearby.
The Jakku uprising was first depicted in the 2019 movie Star Wars: Episode IX The Rise of Skywalker, which was the concluding chapter of the sequel trilogy.