That segment was marked off, on the plot, by two red lines drawn athwart the ring. One was located at the longitude of 166 degrees, 30 minutes west, above the former Pacific island of Kiribati. This placed it near the eastern end of the Julian segment. The other was at precisely 90 degrees east, running through the habitat called Dhaka, in the exact center of the Camites’ arc. The lines were borders: not just imaginary frontiers but literal barriers that had been constructed, like turnpikes, across the ring. The warm-colored arc of habitats stretching between them, incorporating most of the Julian segment, all of the Aïdan segment, and exactly half of the Camite segment, was, to Kath Two and the others aboard this flivver, another country. The relationship between it and the larger, cool-colored segment where they lived could be described in many possible ways, of which the most succinct was war.