 Ball wrote, in the 1980s, that China has several dozen SIGINT stations aimed at Russia, Japan, Taiwan, Southeast Asia and India, as well as internal communications.Of the stations apparently targeting Russia, there are sites at Jilemutu and Jixi in the northeast, and at Erlian and Hami near the Mongolian border.Two Russian-facing sites in Xinjiang (Sinkiang), at Qitai and Korla may be operated jointly with resources from the US CIA's Office of SIGINT Operations, probably focused on missile and space activity.