Not every god pilot was available to defend the border regions.
Crucial star systems such as Bridgehead One also needed strong protectors to guard against sneak attacks and prevent any human rebels from plunging the rear of human space into chaos.
The intervention of dreadnoughts such as the Reign of Frost urgently relieved the pressure and allowed the defending star systems to hold out a little longer.
Even if an even larger second wave of alien assault fleets were on the way to overrun the human fortifications that managed to defend their positions for the time being, any progress was better than nothing!
As millions of humans and aliens perished across the border zones of human space, more dreadnoughts intervened in their own ways.
In one star system, another multi-racial fleet of advanced puelmer and orven warships abruptly began to malfunction on a large scale!