this was the oldest and most exclusive of the primary Neimoidian purse-worlds. Much of its underground network of caverns and tunnels was set aside for securing the amassed treasure troves of the wealthy Neimoidians who lived on the planet. Towers and skyscrapers were erected on swaying bridges that connecting the buildings to the mouths of various caverns and caves, thereby ensuring that the Neimoidian inhabitants were never very far from their riches. After the onset of the Clone Wars, however, Cato Neimoidia became a stronghold of the Neimoidian elite. Weapons emplacements were added to much of the architecture, and legions of battle droids were stationed alongside the Neimoidian Home Defense Legions to ensure the safety of the planet's inhabitants. During the height of the Clone Wars, however, the forces of the Grand Army of the Republic were able to regain control of the planet, removing the Separatist Neimoidians from power. Note that The Art of Star Wars: Episode III - Revenge of the Sith indicates that Cato Neimoidia is the homeworld of the Neimoidians, not just a purse-world.