Is the Russian Military in Crimea a Curse on the Ukraine?

Senior ukranian military and politicians say they hope to make a significant advance in the south. This would push the russian troops back into crimeah, of course, i's going to end the land bridge to crimea. They seem to be manoeuvring to confront a big offensive - reports coming in that they're shifting significantly ther posture ound the carson area. The three bridges across the dnipro had been very severely damaged by long range rocket artillery to the point where they are kind of been passable. So actually getting supplies to these soldiers is going to be really down to getting trundling trucks across some er pontoon bridges which are also very vulnerable. And