The Star Wars universe, since its creation, has introduced many monumental events that shaped the galaxy over three sagas and even more eras. From the Battle of Geonosis being the start of the Clone Wars to the Battle of Exegol, which saw the end of the Emperor, these events all marked a turning point in the galaxy. But some events were easier to set up and enact than others and required careful planning. The best example of this came with the Clone Army, its place in the universe and how its creation could benefit Chancellor Palpatine's plans to gain power over the Republic.
The 150 general orders were a collection of rules meant to be followed by the Grand Army of the Republic's Clone Troopers. Initially introduced in the Legends continuity, these orders were designed to ensure Clones had a set of rules to maintain. However, they also served as a means to sneak in Order 66, which marked the eradication of Jedi across the galaxy. But the order just before that, Order 65, had the potential to be the perfect cover-up by essentially warning the Republic of Palpatine's villainy.
Order 66 Was Put in Place Before the Republic Realized
From the moment that Sheev Palpatine gained a position in office on Coruscant, he had already been hard at work orchestrating a way to seize control in a way that kept his hands clean. This meant implementing Sith apprentices to serve as the face of the Separatists, like Count Dooku, and giving himself more agency to be a victim. He would even orchestrate kidnappings where he would be the victim, like when he was taken in Star Wars Episode III: Revenge of the Sith. But all of this was posturing so that the real work could continue unnoticed by the masses.
One of his greatest tasks was the instillation of Order 66, though a bio-chip put in the minds of every Clone soldier that was born. The order was top secret and unbreakable programming that forced all clones to see Jedi as traitors of the Republic and to kill them on sight. Although this was a top-secret order and hidden from the prying eyes of Senators, many who might've had the desire to check didn't feel nearly as compelled because of Order 65. The order stated that if Chancellor Palpatine were deemed unfit to lead, he could be forcibly removed and even killed, showing that checks and balances were seemingly in place during his rule.
Order 65 Put Many Minds at Ease
The Clone Wars showed that Palpatine's haste in gaining control was something that raised the eyebrows of many senators. Bail Organa was one of the earliest to see the peculiarity in Palpatine's desire to take emergency powers in Revenge of the Sith. However, Star Wars: The Clone Wars had already alluded to concern even among the Clone Army as one Clone named Fives discovered the truth about the bio-chips and Order 66. Sadly, he was killed, and the revelation was silenced with him. Even still, for those not in the army concerned about Palpatine's doings, Order 65 was the perfect fail-safe.
Order 65 was more than an order to maintain peace in the Republic -- it was a clever means to quell the concerns of politicians that were smart enough to question but lacked the drive to make a stand. Seeing that Palpatine knew the dangers of absolute power left many to breathe a sigh of relief as no one with a desire to control would implement an order that stripped control from them, even if it meant death. But this was a two-fold plan as it silenced those without the strength to fight back and proved useless even when implemented, as Palpatine could hold his own in a battle.
While the order is no longer canon, Order 65 was something that the Jedi unwittingly enacted in Revenge of the Sith when Mace Windu and his allies went to arrest Palpatine. However, even with a small group of skilled Jedi, Palpatine was more powerful and swiftly executed three Jedi with his lightsaber skills. The scene also proved the futility of Order 65 as even if it were utilized, Palpatine could simply kill anyone that stood in his way. In essence, the deaths of Mace Windu and his team represented the false hope the Republic had at maintaining control at the end of the Clone Wars. As a result, Order 65 was nothing more than an empty comfort put in place to silence concerned parties.
Order 65 Could've Been More Important Than Order 66
There's no denying the importance and larger impact of Order 66 on the galaxy. By simply enacting it, the order allowed the Supreme Chancellor to become Emperor Palpatine and immediately began work demonizing the Jedi name and taking over Republic-occupied planets. It was a shift so fast that no one could've seen it coming and likely made Order 66 the most important event in the Star Wars universe. Even still, had Order 65 been made canon, it's entirely possible that its implications could've made it a more important order than the one that killed all the Jedi years later.
Order 65 was, in essence, a nothing order as it carried no weight but evoked a powerful sense of safety. With a Republic as vast as the one in Star Wars, fear of a power grab was always a matter of concern. As a result, previous Supreme Chancellors like Valorum suffered as it was a vote of no confidence that saw him removed from office. With that in mind, seeing a new Supreme Chancellor that was comfortable calling out potential flaws in himself was refreshing. Had Order 65 been made canon, then it's possible his rise to power could've come sooner because even if enacted before Revenge of the Sith, no one could've beaten Palpatine. Therefore, the Empire's rise to power could've inadvertently proven why Order 65 might've become the greatest order of the 150 general orders.