Star Wars: Echo
As the Clone Wars drew to a close with the full surrender of the Confederacy of Independent Systems and believing the Republic had become corrupt and evil during the long years of the Clone Wars, the Jedi rebelled against the very government they had sworn to serve. The defenders of peace and justice had become evil oppressors who wished to enforce their own rule onto those without the Force.
In order to preserve the ideals that he had sworn to uphold when elected, Supreme Chancellor Palpatine issued Order 66 to the Grand Army of the Republic, commanding the clone army to arrest, and if necessary kill, all members of the Jedi Order. Within a week, the Jedi temple had been occupied by the Army and almost the entire Jedi Order was either imprisoned or terminated. A year later, Emperor Palpatine announced that the Jedi scourge had been finally eliminated.