The US is warning that it could change how it defends North American airspace if Canada moves away from its agreement to purchase F-35 fighter jets.The US Ambassador to Canada Pete Hoekstra said the long-standing North American Aerospace Defense Command, or NORAD, could be affected if Canada does...source https://www.thenews.com.pk/latest/1389943-fighter-jets-in-canada-us-signals-security-shift-if-f-35-purchase-is-reduced
