The Order would issue a message to all criminal organisations to pull back into Bretonia. (Let us assume all criminal organisations follow this, using a slash and burn technique with their bases and resources.)
Bretonia would hold as a fortress whilst a guerilla war was fought against the nomads.
The Order would start mass manufacturing of cloaks in Bretonia, effectively cloaking Bretonia whilst this guerilla war was fought, and effectively cloaking the ships partaking in guerilla activities.
The war would continue until the Bretonian Coalition builds eight sleeper ships and launches into another sector of space.