Certainly. I'll speak from a global context and ask General Loos to speak specifically to the north.
What I can assure you is that the capabilities of the networks allowing us to see in the maritime, air, land, and the cyber domains, the sensors and the networks belong either to us or to our operational partners; and the protection of those networks is our responsibility or our partners' responsibility because it's their network we're leveraging. We are on top of understanding what's going on inside our networks and assuring the preservation and defence of those networks so that they can be used even when challenged by irregular actors or otherwise, so those networks are ours.
The networks beyond that, of course, as you know, do not belong to Defence, and as they come to the federal or provincial authorities or the private sector, those fall under the domain of Public Safety and others. We're connected with them to understand their read on the capability and the vulnerabilities that may exist in those networks. Day to day, I am provided an understanding of what's going on in our networks and how, if those networks are being affected, that's being detected, attributed, and mitigated by our own network defenders, so we're seeing that absolutely day to day.
I have high confidence that the networks we have today, including the relationships we have today with the partners that would respond to the contingencies described, pre-exist the crisis. We don't have to make them up when the crisis manifests itself: they're pre-existing. Day to day, the liaison exchange and communications keep us connected so that they're resilient if and when a crisis manifests itself.
The north is more of a challenge, of course, because the infrastructure there is more distributed and requires more space than does terrestrial.
Greg, go ahead.