What is the narrator describing in the opening pages of the novel, The Indian Uprising?

When the story opens, the narrator is describing the city as it looked during the battle with the Comanches, when he and his compatriots "defended the city as best we could." The city is barricaded and festooned with protective wire, and it features streets with such names as Rue Chester Nimitz and George C. Marshall Allée. The narrator's troops have captured a Comanche and are interrogating and torturing him.