The Yuuzhan Vong warfleet attacks Coruscant from the OboRin Comet Cluster, having assembled at such staging positions like Borleias. They use refugee ships containing prisoners from earlier battles to shield the Vong fleet. Even with the efforts of legendary leaders such as General Garm Bel Iblis (commanding Fleet Group Two), Admiral Traest Kre'fey (commanding Fleet Group One), General Wedge Antilles (commanding Fleet Group Three), Supreme Commander Sien Sovv, and Jedi Master Luke Skywalker, the Yuuzhan Vong are too plentiful to be thwarted. It was said that the Vong fleet numbered "tens of thousands", and that half of the New Republic space navy was present. Chief of State Borsk Fey'lya made Admiral Sovv command the battle in front of a full session of the Senate. As a result, the New Republic forces have no effective overall strategy, and discipline breaks down. When Sovv orders that the fleet hold their fire in order to not hit the refugee ships, Iblis flat out ignores him, and his Fleet Group operate solely under his command for the rest of the battle attacking the Yuuzhan Vong head on and suffering enormous casualties. The refugee ships, which are piloted by Yuuzhan Vong, are deliberately smashed into Coruscant's shields to weaken them. This tactic works, as eventually whole shield-grids fails, and the surface shield-generators explodes. Coruscant does have extensive mine fields, but these doesn't have quite as large an impact as desired—the defenders at Coruscant disable the mines to avoid slaughtering the refugees. The Vong also use the refugee ships to batter the city planet's surface, causing terrible damage below. Even the orbital defense platforms could not stop the advance of the Yuuzhan Vong. Soon Coruscant's skyline is burning with crashing vessels and plasma fire from the battle above. Even Orbital Defense Headquarters is crippled, and falls out of orbit to the surface. During the battle, Luke Skywalker and other Jedi from the Eclipse base target the enemy war coordinating yammosks, and manage to destroy four of them.