the russians say they don t plan to do that. the credibility is not very high. so with the arrival of this new u.s. military aid at the very least, what is the message that president biden is perhaps sending or what s the message received if you re vladimir putin? reporter: yeah, i think there s several things here. the message received is that the assessment of the united states and its allies is that the threat of economic sanctions alone is not going to work. the threat of nato building up on russia s western flank, the eastern side of europe, that doesn t appear in the minds of the united states and european partners to be enough to deter putin, so at the moment, putin is looking at this escalating strategy to put him off. and it s now got to the point of trying to give the ukrainians more military hardware, and i think the take away in mos cow t