Operation: Knightfall, which took place in 19 BBY immediately before the end of the Clone Wars, was one of the first conflicts of the Great Jedi Purge (LadyVader). After assisting in the death of Jedi Master Mace Windu(LadyVader) and submitting to the tutelage of Dark Lord of the Sith Darth Sidious (LadyVader) —known to the galaxy as Palpatine, Supreme Chancellor of the Galactic Republic—Jedi Knight Anakin Skywalker (LadyVader) fell to the dark side and was anointed Darth Vader.