Moreover, after a long period of exploration and calculation, we vaguely found the reason: a part of elite human fighters are always able to perform extraordinarily and show extra combat power.
Ok, we have readjusted our calculation methods and sent as much military strength as possible each time.
But why do those human elite fighters seem to have no limits? They become stronger each time... even stronger than before.
The Compound-Eyed Observer has been ruling the Virgo Cluster for countless billions of years. At the borders of its territory, or within others', it confronted other Fourth-class Civilizations or those close to it without lacking combat experience.
As a higher civilization that relies on countless years of accumulation and resources of a vast galaxy cluster that can mobilize numerous stellar systems, the Compound-Eyed Observer's understanding of cosmic warfare is basically the exchange of firepower.
Whoever can't withstand it first is defeated.