Snowcap

Snowcap was a space tracking station in Antarctica. It was commanded by General Cutler and operated under International Space Command. Besides its primary function of mission control, it contained an arsenal of cobra missiles and launch facilities for Demeter rockets, each capable of carrying a Z-Bomb. It was supported, in part, by a relay station in Hawaii. In 1986, the base was attacked by Cybermen. (DW: The Tenth Planet)