<P> 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 . </P>
<P> 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 . </P>
who defeated obi-wan kenobi in a lightsaber duel
who defeated obi-wan kenobi in a lightsaber duel
Vader
Vader