This, however, failed in recovering the lost schematics. Immediately, an Imperial assault on a makeshift Rebel base on Polis Massa was initiated, being tasked with retaking the stolen plans. It successfully occurred during a distracting Rebel prisoner revolt on the Death Star, being supplemented by partial documents stolen during the Battle of Danuta and the Battle of Toprawa. The theft of these plans was the aim of the wider Operation Skyhook. An unwitting instigator to the battle was the disguised Alderaanian diplomatic corvette Tantive IV, being used as an important vessel in the Rebel Alliance fleet, most notably in the operation to steal the plans of the Death Star: the new Imperial superweapon. The battle was part of the Galactic Civil War, a major conflict that opposed the Galactic Empire and the Alliance to Restore the Republic. For all their talk of being a peaceful planet, Alderaan had been thumbing its nose at the Empire for years.' ― Unidentified 501st stormtrooper ' With the information gathered on Polis Massa, Vader concluded that the stolen plans had been given to Princess Leia Organa of Alderaan.
