During the last decades of the Galactic Republic up to the Clone Wars, the Malastarian council, led by Doge Nakha Urus, governed the Dug species; providing defense and conducting bilateral relations. It is unknown whether the Council represented Malastare in the Galactic Senate since that was occupied by Gran senators from the Gran Protectorate. During the Clone Wars, Malastare's substantial fuel reserves caught the attention of the Republic and the Confederacy of Independent Systems, which both need the fuel to power their starships. While the Gran Protectorate controlled Malastare's senatorial representation, the Dug-dominated Malastarian Council still retained control of the planet's substantial fuel reserves.
Around 21 BBY, a massive Separatist droid army invaded Malastare. Outnumbered and out-armed, the Malastarian council appealed for the Republic, which dispatched clone troopers and Jedi reinforcements. However, the Republic reinforcements and their Dug allies were still outnumbered two-to-one by the larger droid army. When it appeared that the Republic would lose, Supreme Chancellor Palpatine authorized the deployment of the prototype super-weapon the electro-proton bomb, which immobilized the droid forces rapidly, wiping out resistance.
However, the blast opened a crater and the ensuing uproar stirred a Zillo Beast, the last of a gargantuan ancient species that had preyed on the sapient Dug natives in ancient times. The enraged beast emerged from its crater and rampaged through the emaciated Republic and Dug lines, inflicting heavy casualties and much chaos. Fearing an apocalyptic doom, the Malastarian council demanded that the Republic destroy the Zillo beast or they would not ratify the treaty and provide the Republic with fuel.
- The Zillo Beast (First appearance)