This is mostly an example for Ad Havoc Campaign Manager. A lot of the information was copied from Wikipedia and StarWars.com. I do not know if it is copyright anyone, and is here solely as an example of how to use AdHavoc Campaign Manager.
As a direct reaction to the Galactic Empire, the Rebel Alliance warred throughout the Star Wars galaxy for restoring the ideals of the Old Republic.
The Empire replaces the Galactic Republic in the midst of a galactic civil war by Palpatine, then the Republic's Supreme Chancellor. Palpatine appoints himself Emperor in the presence of the Galactic Senate, afterward the Imperial Senate.
The Galactic Empire is born out of the collapsing Old Republic. However, the seeds of change are planted during the Clone Wars, the epic war between the Republic and the Confederacy of Independent Systems.
When the extent of the Separatist threat becomes clear, the Old Republic Senate, the legislature of the Republic, grants Palpatine extended governmental powers to deal with the crisis. This conflict allows Palpatine to remain in office long after his term as Chancellor officially expires. Palpatine promises to return his powers to the Senate once peace and order is restored to the galaxy. His first order is to create an army of clone troopers. He takes advantage of the conflict to increase the office's power until he is effectively a dictator.
The Jedi begin to distrust the Chancellor's motives, fearing he has come under the influence of a Sith Lord named Darth Sidious. Their concerns are shared by several Senators, who suspect Palpatine may not return his emergency powers to the Senate as promised. Among them are two who had long supported Palpatine, Padmé Amidala and Bail Organa. The film eventually reveals that Palpatine and Sidious are one and the same, and that he has been manipulating the Republic and the Separatists against each other.
When the Jedi Knight Anakin Skywalker discovers Palpatine is actually Darth Sidious, he returns to the Jedi Temple to inform Jedi Master Mace Windu what he has learned. Windu then leaves with three other Masters to arrest Palpatine, instructing Anakin to remain at the temple. Anakin ignores Mace Windu's directive and returns to the Chancellor's office to prevent the Jedi from killing him; Palpatine has manipulated him into believing that he has the power to save Anakin's pregnant wife, Padmé Amidala, from dying in childbirth. The cadre of Jedi try to apprehend Palpatine, who quickly produces a lightsaber and dispatches all but Windu. When Anakin arrives, Windu is standing over the disarmed Palpatine, prepared to strike. Anakin intervenes on Palpatine's behalf by cutting off Windu's hand, allowing Palpatine to send Windu plunging to his death with a blast of Force lightning. Anakin then submits to the dark side of the Force, becoming Palpatine's Sith apprentice, Darth Vader.
Palpatine declares the Jedi to be traitors and enemies of the Republic, and issues Order 66, a secret order he implanted in the clones to overthrow their Jedi commanders. In a matter of hours, nearly all Jedi are wiped out across the galaxy. Secure in his power and position, Palpatine reorganizes the Republic into the Galactic Empire, with himself as supreme Emperor for life. The Senate enthusiastically supports Palpatine's "safe and secure society", although a few, like Padmé and Organa, realize that the freedom enshrined by the Republic is in serious jeopardy. A deleted scene in the film establishes that the two are among the main founders of the Rebel Alliance, which later arises in A New Hope.
Two remaining Jedi, Obi-Wan Kenobi and Yoda, attempt to attack and destroy the Sith once and for all. Yoda confronts Palpatine, and Obi-Wan duels his former apprentice, now Darth Vader. Obi-Wan defeats Vader, but Yoda's duel with Palpatine ends in stalemate; both Jedi are forced to go into exile.
Led by Darth Vader, the Emperor's Army of stormtroopers all but exterminate the Jedi Order.