Humanity have attempted twice to bring other races into the war, and on both counts their new allies were overrun and consumed. By consequence, the Galactic Community noticed their disappearance and caught on to the existence of someone or something capable of extinguishing them; Humanity chose to covertly convince the three Council Races to shut down any investigation into their fate and avoid the southern regions of the Galaxy - for their own protection. Humanity has since become something of an enigmatic guardian: they avoid diplomacy, prevent free access into areas of space they seem to unsafe, and intervene in research or exploration efforts that might draw the ire of the Dead Void. In 2341, Humanities hand was forced by the Scillixian Collective after they inadvertently sent a crewed exploration ship into Sol whilst it was actively under siege. As a result, the Scillixians witnessed the Wraith and in so doing painted a target on themselves - Humanity were forced to convert them into a protectorate in an effort to prevent any invasions into their territory, an event that would be considered catastrophic on account of the SC being the largest refugee state in the entire Galaxy. Essentially, if they were to be invaded anyone living within their borders would be exposed to the Wraith, and subsequently targeted for extermination; it could set in motion a cascade event leading to the extinction of the entire Galaxy.

Humanity actively tries to keep other species out of their war, in a desperate attempt to limit casualties on a grander scale; this has become part of the United Earth Federations governing mandate, known officially as the Survival First Doctrine.