The Galactic Empire, often referred to simply as the Empire, is a fictional dictatorship featured in the Star Wars franchise. It was first introduced in the 1977 film Star Wars and also appears in its two sequels: The Empire Strikes Back (1980) and Return of the Jedi (1983) and is the main antagonist of the original trilogy. The Empire's origins are depicted in the prequel Star Wars Episode III: Revenge of the Sith (2005), where it replaces the Galactic Republic at the end of the Clone Wars orchestrated by Palpatine, who was then the Republic's Supreme Chancellor. Palpatine is also secretly the Sith Lord Darth Sidious who intends to purge the Jedi and restore the Sith to power in the galaxy. Palpatine's Sith identity is only known by a small few throughout his life. Palpatine claims that the Jedi attempted to assassinate him and overthrow the Galactic Senate and declares the Jedi to have committed treason. Palpatine declares that the civil war with the separatists in combination with the Jedi coup d'état require the reorganization of the Republic into a state that can provide stability, and a safe and secure society, a Galactic Empire with himself as Emperor. The Senate that he has manipulated overwhelmingly applauds Palpatine's decision.