doctor ramin parham, thank ou regional power.prise cross border incursion that began last week. ukraine says it does not want to occupy russian territory — but that it will continue its military action until moscow agrees to peace. a key part of the strategy appears to be to force russia to divert its forces from the eastern front, marked here in red, to protect its own territory. ukraine's invasion of russian territory in the kursk region is seen here in yellow. ukrainian commanders say they control over a thousand square kilometres of russian land. moscow has evacuated 120,000 of its citizens from the area. well, ukrainian troops are crossing over the border into russia from the sumy region close to kursk. earlier, i spoke to former us ambassador to nato and former united states special envoy to ukraine, kurt volker, and asked him whether this surprise offensive is a gamble. i think that this was a choice, a decision to show to the world that russia is more vulnerable than it looks, to show to the russian people that this is in