The only eyewitness report i saw from the front lines showed us crude trenches at best. These will be casaulty rich under bombardment. After all no one expects to stay there. Few recalled just how low US casulties became in korea after they hardened up their bunkers. what they have is insuffiicent and foxholes would be better for them. My point is that an offensive will see crawling artillary bombardments. In the meantime the Ukranians have been degraded ahead of time as well. Nothing fancy is going to save them here. and NATO and the USA is not going to conscript 10,000,000 soldiers at all.