The Uprising on Onderon, also called the Iziz Uprising, was a rebellion on Onderon against the occupying forces of the Galactic Empire. The planet remained occupied since 19 BBY, by a garrison led by General Otto Azarin, Military Commander on Onderon. He disbanded the Onderonian government and set up a commissioner administration. As of 11 BBY, he had essentially become a dictator and had committed many massacres of civilians who he thought were rebels. Milan Aćimović, the commander of the Royal Onderon Militia, secretly started arming the rebels and prepared a plan to take back the planet from the Imperials.