Following the conclusion of the Clone Wars and Sheev Palpatine's declaration as Supreme Chancellor of the proclamation of the New Order, the Galactic Empire seized the planet of Onderon. Conversely, the Onderon rebels, spearheaded by Saw Gerrera, would not yield to the new Galactic Emperor, viewing the transition of the Galactic Republic into the Empire as a violation of their core beliefs. Post-annexation and due to his rejection of Imperial authority, Gerrera rose to prominence as a key figure in a rebellion that sought to drive out the occupying forces.