For questions related to search and rescue, I'll defer to my friend from the Canadian Air Force.
I will say that the way the navy looks at the Arctic environment is that we treat it as an expeditionary theatre. That means we need to deploy with all of the capabilities that we require to be able to operate up there, because we recognize the limited capacity of Arctic territories to support other things. We don't want to take away the resources from the local communities. We want to make sure that we come with everything we need to be able to operate and that we are a net benefit to the people of the north whenever we're operating up there.