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