so there's definitely a mood here that things are looking increasingly grim, and a lot of anxiety about what the u.s. and nato's position will be regardless of whether it's a minor incursion or a full-scale invasion. >> as vladamir putin said anything about joe biden's comments? >> reporter: we haven't heard much from president vladamir putin today. you know, we did hear that russia has announced a new raft of huge, sort of naval exercises to take place in the coming months. and there's a sense that he's continuing to ratchet up the pressure, to increase the drumbeat. he wants to see some tangible, written statement from the u.s. as a response to the request or demands that russia has made. we also heard today from his spokesperson, who was asked whether there should be a possible meeting, a second