Canada war-gamed a U.S. invasion. A former NORAD commander explains why

WASHINGTON, D.C. — In recent weeks, we’ve learned that Canadian military leaders war-gamed U.S. military action against Canada earlier this year, with Prime Minister Mark Carney having described it as an “extreme tail risk,” in an interview last month with the New York Times.That revelation was a stark reflection of an increasingly strained relationship amid the tariff war, even as Arctic, missile, drone, and homeland-defence threats continue to rise. To understand how t