Template:Featured article/Main/22 July
Cheyenne Mountain was the site of a United States military facility known as the North American Aerospace Defense Command or NORAD. The facility was the principal aerospace and strategic defense command center for the North American continent. Conceived as a joint defense venture between the United States and Canada, NORAD protected the citizens of both countries through the darkest days of the Cold War. By 2241, NORAD is offline. Cheyenne Mountain also houses Vault 0, where the Calculator has bided its time and amassed a substantial robot army. The "Menace of the West" is rumored to be plotting the extermination of mankind.