397px-End Days

Palpatine addressing the order

"The time has come. Execute Order 66."

- Emperor Palpatine addressing the clone troopers to kill the Jedi

Order 66 marked the dawn of a new era, one ruled by an evil Emperor Palpatine. All clone trooper commanders or captains were to execute the order, and were trained to execute it from an early age. The order declared that all Jedi were traitorous, and needed to be destroyed. Many clone leaders obeyed this order. Though, some clones, like the clone commando Ion Team and Omega Squad, did not execute this high order. Thousands of Jedi died because of the clone troopers betrayal.