By sarcastically stating that the soldiers “react[] admirably,” the narrator mocks the absurdity of their actions: not only are they heavily armed against blind people who cannot fight back, but killing the blind will not do anything from preventing the blindness from spreading. Of course, blindness is what the soldiers truly fear, and they likely already know that going blind is inevitable—the massacre simply proves that they are emotionally incapable of accepting this reality. The sergeant’s explanation, while obviously absurd to the reader and the narrator, is designed to further scare the blind—who will never learn the truth about what happened—into submission. But it also seems to be a way to assuage his own guilt by refusing to accept that the people on his side could possibly do anything wrong. Indeed, in hoping that the blind starve and die, he reveals that he has cut off all empathy, as though the position to which he’s been assigned demands it.