 His personal Imperial armada—the 501st Legion and "Death Squadron"—participate in the capture of Princess Leia Organa, the Battle of Hoth and the Battle of Endor.The Senate, now known as the Imperial Senate, nominally continues to exist, though it is virtually powerless.Palpatine dissolves the Senate (off-camera) in "A New Hope" after discovering that several members of the Senate are founding members of the Rebellion.