I would argue, based on what I've told you here today in terms of search and rescue and even some of the more fundamental defence response in the Arctic, that collaboration is essential, from intelligence to actually operating up in the north. We practise that each and every day.
Our relationship with NORTHCOM is a fundamental part of what we do. We exercise in the north. We exercise in command post exercises. In the exercises that we run, we invite all of our partners from NATO and elsewhere. We've certainly had observers from Denmark, the U.K., Germany, the Netherlands, and other countries.
When I co-chaired the Arctic Security Forces Roundtable, which we've participated in since its inception in 2011, among the key things that we talked about was greater co-operation in sharing and exercises. We talked a lot about information sharing and intelligence sharing, so we're aware of what's going on in the Arctic spaces. That's fundamental to operating up there.