 wing pop out wing kit that turns dumb bombs into glide bombs that can be launched from standoff range. And so the Russians use these to really pummel these buildings. Despite all that, as I say, they haven't made a whole lot of progress. They've taken most of the easternmost micro district of the city that sits east of a canal that splits the city. But beyond that, they haven't gained much ground. Bill, you have a question for John.