At the Enrojet Alliance's border.
Although the Enrojet Alliance's territory was not as vast as that of Human Civilization, it still encompassed the space within a hundred light-years of the Enrojet Stellar System.
Although the alliance had admitted more than three hundred civilizations, their capabilities varied widely. Most were level one or level two civilizations that had only recently ventured beyond their stellar systems.
Level three civilizations already formed the backbone of the alliance.
Level four civilizations could be considered its elite fighting forces.
As for the Enroget Civilization itself, needless to say, it was the anchor that held everything together.
Border defense was primarily handled jointly by level three and level four civilizations.
Of course, the Enroget Civilization also maintained its own border defense forces, but the alliance's territory was so vast that its warships could offer little protection once scattered across it.
Under normal circumstances, these level five civilization warships mainly served as a deterrent.
Against a civilization of the same level, without reinforcements, such a defensive line was as fragile as an eggshell, shattering at the slightest touch.
For precisely that reason, the Enroget Civilization's most pressing task was to determine the direction of Human Civilization's attack.
That was where the problem arose.
Limited by its own technological capabilities, the Enrojet Alliance still had no idea of Human Civilization's exact attack route-their fleet had not yet entered the detection range of its Tachyon Radar!
So far, all the Enrojet Alliance knew of Human Civilization came from those silver-white probes that had long since been blasted into countless fragments.
Naturally, the alliance's defensive forces had been deployed around the three border outposts where the silver-white probes had been discovered.
To ensure a successful interception, the alliance had extended its defensive line across ten light-years under its leader's orders.