We have not experienced any hostile incursions.
If we are talking about penetration of our air defence identification zone, we again have to specify that Russian aircraft are entitled to travel in international airspace. The identification zone allows for control of traffic entering North America. That is what we ask. Those planes, which are government-owned, are not required to provide us with flight plans.
It might be interesting to visit the Canadian Air Defence Sector in North Bay. You will see on the scope that all aircraft entering North America have flight plans, with the exception of one or two planes that come from the northwest Arctic or the Alaska North Slope. Those are the cases when the planes have to be identified, and it is that need to identify them that requires that we still do immediate takeoffs.
In short, there have been no hostile incursions in the last five years.