who defeated obi-wan kenobi in a lightsaber duel
Obi-Wan Kenobi In the spaceport city Mos Eisley, Obi-Wan uses the Force to trick Imperial troops into letting them through a military checkpoint. They enter a local cantina and make a deal with two smugglers, Han Solo and Chewbacca, to fly them to Alderaan aboard their ship, the Millennium Falcon. During the journey, Obi-Wan begins instructing Luke in lightsaber combat. He suddenly becomes weak and tells Luke of "a great disturbance in the Force". Emerging from hyperspace, the party finds that Alderaan has been destroyed by the Empire, and the Falcon is attacked by an Imperial TIE Fighter. The trio chase the TIE fighter to the Death Star, and subsequently get caught in the space station's tractor beam. On board the Death Star, Obi-Wan shuts down the tractor beam, but Darth Vader confronts him and they engage in a lightsaber duel. Obi-Wan uses the duel to distract Vader as Luke, Leia, Han and Chewbacca escape to the Falcon. Although Vader strikes Obi-Wan down, his body mysteriously vanishes the moment he dies. At the climax of the film during the Rebel attack on the Death Star, Obi-Wan speaks to Luke through the Force to help him destroy the Imperial station.
Death Star The original Death Star's completed form appears in Star Wars, known officially as the DS-1 Orbital Battle Station, or Project Stardust in Rogue One. Commanded by Governor Tarkin, it is the Galactic Empire's "ultimate weapon",[12] a huge spherical space station over 100 kilometers in diameter capable of destroying a planet with one shot of its superlaser. The film opens with Princess Leia transporting the station's schematics to the Rebel Alliance to aid them in destroying the Death Star. Tarkin orders the Death Star to destroy Leia's home world of Alderaan in an attempt to press her into giving him the location of the secret Rebel base; she gives them the false location of Dantooine, but Tarkin has Alderaan destroyed anyway, as a demonstration of the Death Star's firepower and the Empire's resolve. Later, Luke Skywalker, Han Solo, Chewbacca, Obi-Wan Kenobi, C-3PO, and R2-D2 are pulled aboard the station by a tractor beam, where they discover and manage to rescue Princess Leia. As they make their escape, Obi-Wan dies fighting Darth Vader, enabling the others to flee the station. Later, Luke returns as part of a fighter force to attack its only weak point: a ray-shielded particle exhaust vent leading straight from the surface directly into its reactor core. Luke was able to successfully launch his fighter's torpedoes into the vent, impacting the core and triggering a catastrophic explosion, which completely destroyed the station before it could use its superlaser weapon to annihilate its intended target, the rebel base on Yavin IV.[citation needed]