Dawn of Insurrection
During the Clone Wars, it was a key member of the Confederacy of Independent Systems and was defended by the Neimoidian Home Defense Legions.
In 19 BBY, the Republic launched an attack on the redoubt, led by Jedi Generals Obi-Wan Kenobi and Anakin Skywalker, as well as Republic Navy Commander Jan Dodonna, to find Viceroy Nute Gunray of the Trade Federation and bring him to justice. Although Gunray escaped, he left behind hoards of valuables, all of which were captured by the Republic. In addition to this, he also left behind the Mechno-chair he used to contact the other Separatist leaders, and Darth Sidious.
The bridge cities persisted in resisting the Republic, leading to a fierce aerial battle in which Plo Koon was shot down by his own clone pilots shortly after Order 66 was enacted by Supreme Chancellor Palpatine, who declared himself Emperor soon afterward. Also, the Jedi clones X1 and X2 fought in the battle, and X2 killed Jedi Master Ferroda in Gunray’s palace, though he later turned against the Empire.
Acting Viceroy Sentepeth Findos resisted for a brief moment but was forced by Stormtroopers to sign a peace treaty with the Empire the day that the Clone Wars ended, giving all of the Federation’s resources to Palpatine’s disposal to help him build the Galactic Empire. This had made the Trade Federation a puppet government.