During the cold war American bombers protected Canada from the threat of the Sovirt Union. How much did Canada contribute towards the cost of that protection? ZERO DOLLARS!
I trained with Canadian paratroopers in 1979 and they were some hard core soldiers. Those days are behind us. For a good portion of our military also.
But I don’t think we helped with Canada’s security because we wanted paid. It was the right thing to do. Doing something for the right reason is its own reward. A lesson I with Canada would remember.