

An Advanced Recon Commando, CT-5555 "Fives," investigated further into the matter, and learned that the chips were designed to force the clones to kill their Jedi allies. During the Battle of Ringo Vinda, CT-5385 "Tup" betrayed and killed General Tiplar, resulting in an investigation that revealed a hidden behavioral modification biochip within the brain of every clone trooper. They sustained multiple casualties while confronting their commanding officer, but ultimately succeeded in capturing Krell, who was executed while in military custody.Īn incident within the 501st nearly exposed a Sith conspiracy against the Jedi Order. The 501st mutinied against Krell when his betrayal was revealed. Unbeknownst to the clones who served him, Krell turned to the dark side of the Force, and having foreseen the rise of a New Order, he worked in secret to undermine the Republic. During the campaign on Umbara, Skywalker was recalled to the Republic capital of Coruscant, leaving General Pong Krell to assume command of the legion in the interim. The 501st saw action on multiple battlefronts across the galaxy, becoming part of several historic engagements such as the Battle of Christophsis, the Second Battle of Geonosis, and the Battle of Umbara. Throughout the conflict, the soldiers of the 501st were known for their courage, unconventional tactics, and loyalty to the Republic.

Under the leadership of Jedi General Anakin Skywalker, Jedi Commander Ahsoka Tano, and Clone Commander CT-7567 "Rex," the 501st fought against the Separatist Droid Army of the Confederacy of Independent Systems. The legion predated the Galactic Empire, its origins dating back to the Clone Wars of the late Republic Era when the 501st was an elite military battalion of clone troopers in the Grand Army of the Galactic Republic. The 501st Legion, initially created as the 501st Clone Battalion under the Grand Army of the Republic and later joining the Imperial Army as the 501st Imperial Legion, the 501st Stormtrooper Legion-and nicknamed " Vader's Fist"-was an elite stormtrooper legion under the command of the Dark Lord of the Sith Darth Vader during the Imperial Era. Darth Vader's personal legion." ―Everi Chalis
