For over 40 years, one of North America’s most important military facilities was 200 metres below the Canadian Shield “The Hole” is the local nickname for the NORAD North Bay Underground ...

Millions more follow online in nine languages, from English to Japanese. On any other night, NORAD is scanning the heavens for potential threats, such as last year’s Chinese spy balloon.

NORAD, which is responsible for protecting the skies over the United States and Canada, activates its Santa tracking system at 6 a.m. ET on Christmas Eve. Santa watchers can follow his journey on ...