I'd say that, first, is our understanding of where Russian forces are positioning and what their activities are as a voice to their north, which of course frontiers on ours. It's pretty high. We have a pretty good understanding of their physical activity. We also have an appreciation of what their capabilities are, and in the aerospace domain, North American Aerospace Defense Command is paying attention to that every day. There is a series of routine activities that are maintaining our confidence that we're seeing and responding as a demonstration of will and also as a demonstration of our capacity to defend ourselves and preparedness to do so if required. That is happening under NORAD routinely.
Of course, then there is the question of intent. If what you're speaking to is intent, I won't speculate on what people's intentions might be. What I would offer is this: We have a current posture and a five-year plan for advancing our posture in our north, not just activities in the north but with forces from the south in the north. That is, in my estimation, effective in demonstrating our continued investment in and the reality and execution of our sovereignty over our northern aerospace—