High Quality Content by WIKIPEDIA articles! The Northwest Territorial Imperative is an idea popularized since the 1980s within white nationalist and white separatist groups in the United States. According to it, adherents of these groups are encouraged to relocate to a five-state region of the Northwestern United States - viz., Washington, Oregon, Idaho, Montana, and Wyoming. Northern California and some parts of Canada are sometimes also included. The intent is to eventually declare the region an "Aryan" homeland. The primary proponent of this idea was Richard Girnt Butler (1918-2004), leader of the Aryan Nations. The major current exponent of Northwest Migration is Harold Covington (b. 1953) of the Northwest Front.