The quote by H.G. Wells, "If we don't end war, war will end us," underscores the urgent need for humanity to confront and resolve conflicts before they escalate beyond control. It serves as a stark reminder of the potential consequences of ongoing warfare, highlighting that persistent violence can lead to mutual destruction. In the context of Ernest Cline's book "Armada," this theme resonates as characters face challenges that question their morals and the implications of their actions against a backdrop of warfare and survival.

Cline's work emphasizes the necessity of finding peaceful resolutions and understanding the broader impact of conflict, both on individuals and society at large. As the narrative unfolds, it reflects on the choices that lead civilizations toward or away from destructive paths. Through the lens of science fiction, "Armada" urges readers to consider the importance of unity and the collective responsibility to avoid the fate that Wells warned about, where unchecked war could ultimately lead to devastation for all.