Thanks for the question.
Yes, in the past, we have had intercepts on the East Coast or the northeast flank of NORAD near the Arctic Archipelago. That's why we maintain forward operating locations that allow us to respond to those incursions into the air defence identification zone, and not into the immediate airspace of Canada or the United States. These bases mean that we can respond on the East Coast, northeast flank, northwest flank or West Coast.
We last saw any such aircraft on the West Coast, not directly in Alaska, in 2014 or 2015.