The Battle of Clantosh Prime or the Battle of Clantosh III was a major battle in the Grekins campaign. After discovering that rogue Admiral Erk Grekins had taken control of the Clantosh system, the New Republic quickly moved to take it. They started with the lush planet of Clantosh Prime. However, it was heavily defended, and the battle took several bloody months. After finally achieving victory, the New Republic concentrated on the Clantosh asteroid field.