NORAD keeps close watch on Santa as he nears Canadian airspace.
Want to know when Santa enters Canadian airspace on Christmas Eve? So does NORAD.
In the 2012 Canadian NORAD Region holiday video, Major General Pierre St-Amand explains that “trackers in the Canadian air-defence sector … [will] closely monitor their radar systems to make sure Santa and his reindeer are not delayed on their way into your home on Christmas Eve.”
When Santa and his reindeer near eastern Canada, NORAD will scramble two Canadian fighter jets to escort Santa into Canadian airspace; the fighter jets will accompany Santa across Canada as he makes his deliveries and then escort him to the border to ensure that he leaves.