21 BBY, April 4.
The actual ruler of Salust, Beolars Bribbs, Chief Executive Officer of the Sothropp Corporation, secretly traveled to Gerrenthum Planet to meet with Tang Xiao, Governor of Dawn Star Planet. The two sides finalized the battle's final details.
On April 5, the Fourth Civilization deployed dozens of small outpost fleets. These fleets consisted of medium and small warships such as Revenge-class light destroyers and Javelin-class missile frigates. They struck in all directions, beginning the large-scale destruction of the outposts and Interdictors established by the Galactic Republic between Gerrenthum Planet and Eriadu.
On April 6, Nothoiin surrendered, and the gateway to the Nothoiin Corridor hyperspace route between Gerrenthum Planet and Eriadu swung wide open.
On April 10, the Fourth Civilization fleet destroyed the outer outposts, and 20 Dreadnought-class heavy cruisers arrived at Dolla Planet.
However, Dolla Planet refused to surrender. This relatively developed planet even possessed a Planetary Shield and was prepared to resist to the bitter end.
Under the protection of 40 Javelin-class missile frigates and 10 Garda Flak Frigates, the 20 Dreadnought-class heavy cruisers began an Orbital Bombardment of Dolla Planet's Planetary Shield.
At the same time, the Fourth Civilization's other outpost fleets also entered the Dolla system and began clearing out the Interdictors and space minefields.
That evening, Galactic Standard Time, a fast fleet departing from Eriadu and composed of 10 Aquitenes-class light cruisers and 5 Kallak-class light cruisers entered the Dolla system, attempting to disperse the Fourth Civilization's outpost fleets. The two sides exchanged fire.
The Republic fleet's Aquitenes-class light cruisers quickly destroyed several Javelin-class missile frigates with their formidable firepower. But the Fourth Civilization fleet's Revenge-class light destroyers and Revelation-class light cruisers soon joined the battle, throwing both sides into chaotic melee.
Meanwhile, the Javelin-class missile frigates began pulling away, taking cover behind