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After a daring rescue, Organa got the plans to the Rebel base on Yavin 4, from which the Alliance launched the Battle of Yavin with a small squadron of starfighters. These plans were ultimately transmitted to Princess Leia Organa of Alderaan aboard the Tantive IV, before her capture and demonstration of the weapon's capabilities on her home planet. Ultimately, rogue operatives Jyn Erso and Cassian Andor led a mission to steal the Death Star plans, which the Rebellion against the Empire eventually joined, realizing it was essential for its survival. When the Alliance to Restore the Republic learned of the Death Star's existence, it caused a split among the Alliance members, with some feeling that the presence of such a weapon was too great a threat to justify the continued existence of the Alliance to Restore the Republic, while others felt that the Alliance should attack the platform to exploit a rumored defect in the Death Star's design. The station, which took many years longer to complete than expected, was eventually moved from Geonosis to Scarif in its final stages of construction. It was built in orbit of Geonosis and supported by a complex logistical network of bases. After the fall of the Confederacy, construction of the Death Star was appropriated by the nascent Empire. Thousands of years later, shortly before the outbreak of the Clone Wars, the Geonosians, aligned with Count Dooku and the Confederacy of Independent Systems, designed the Ultimate Weapon in secret. Some of the earliest plans for a mobile, planet-destroying superweapon dated back millennia to the ancient Sith. It was the pet project of Emperor Palpatine, Director Orson Callan Krennic, and its eventual commander Grand Moff Wilhuff Tarkin to expound the military philosophy of the aptly named Tarkin Doctrine. It had been designed to fire a single planet-destroying superlaser powered by massive kyber crystals which would destroy any planet targeted. The DS-1 Death Star Mobile Battle Station, also designated as the DS-1 Orbital Battle Station and referred to as the Ultimate Weapon in early development stages and later as the Death Star I and the First Death Star, but simply referred to as the Death Star was a moon-sized, deep- space mobile battle station constructed by the Galactic Empire. " Both as an impregnable fortress and as a symbol of the Emperor's inviolable rule, the deep-space mobile battle station was an achievement on the order of any fashioned by the ancestral species that had unlocked the secret of hyperspace and opened the galaxy to exploration." ―Wilhuff Tarkin, in his posthumously published memoir
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