 We are talking about two things. We're going to talk about zero trust, but also specifically we're going to talk about the Yamasakura 85 exercise that happened in December. And I think this is a really great example of what the Army really duty at large is trying to do with zero trust, drive it to the tactical edge. So first, let me get some basics down. Colonel Burroughs, start us off. Yamasakura 85, what is that exercise? What was its goals? Give us a little bit of background, please.