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it's been a ferocious battle. it's raining now. it has been freezing. certainly ukrainian troops have bulked down in trenches. armor is difficult to move around. neither side can really prevail under these conditions. and it's likely to get worse actually when the ground freezes and armor and mobile artillery can start moving around. there are also reports that the russians are heavily reinforcing yet more troops on that front. so, there's no sign of a let-up, rather this area is becoming a real focus of russian violence, as putin, in the view of ukraine, desperately seeks to get some kind of victory, anderson, after months of defeat, particularly in the north and the south of the country. >> this week, putin said the conflict is going to take a while, and increasingly threats of nuclear war. what's the view from ukraine? >> reporter: well, the ukrainians and many in the international community are extremely concerned about previous threats made by the