Soon, the prisoners are sent to better organized camps on Cheju Island. The facilities are better, but the methods of prisoner control are also enhanced, making it harder to resist. Commissar Pei, for instance, is separated from the men. Also, the prisoners begin to feel very isolated from their country, and worry that they will be treated with suspicion after returning to China, as it can be considered treason to be captured rather than fight to the death. However, with ingenious methods of communication developed, Pei sends orders to raise homemade Chinese communist flags on national day, a provocation which creates a confrontation and raises morale, though lives are lost in the ensuing battle.