Luke refuses, declaring himself a Jedi as his father had been. On Endor, the strike team defeats the Imperial forces and destroys the shield generator, allowing the Rebel fleet to launch their assault on the Death Star. Simultaneously, the Emperor tortures Luke with Force lightning. Unwilling to let his son die, Vader throws the Emperor down the Death Star reactor shaft, killing him, but is mortally wounded in the process. He asks Luke to remove his mask, and after a brief talk, he dies peacefully.