Bulwark Fleet

Designed and created entirely in the Foerost shipyards by besieged Separatist engineers, the Bulwark Fleet was commanded by Dua Ningo and was mostly compromised of the the brand new and tactically impressive Bulwark-class Battlecruisers. The fleet was used to lift the Siege of Foerost and push the CIS offensive forward. Only the advanced release of the Victory-class Star Destroyer was able to stop the fleets ungainly momentum.

Source
New Essential Chronology