Canada contributes to North American air defence and it's F-18s (to become F-35s) fly norad missions. Americans also contribute, and obviosuly have more fighter

Canada contributes to North American air defence and it's F-18s (to become F-35s) fly norad missions. Americans also contribute, and obviosuly have more fighters. The article says both countries dispatched planes, the americans ended up shooting it down. It was over the Yukon which is very close to Alaska so not surprising both were present. It would have been a bit odd if it was over saskatoon or something