petro chernyk , military expert, colonel of the armed forces of ukraine , joins our broadcast, i congratulateou, mr. peter, glory to the heroes, please tell me what the entry into the third line of defense of the russian army means, what the ukrainian minister of defense is talking about, how far this the defensive line can be powerful in your opinion? well, it is definitely powerful, ours the enemy knows how to dig in, but the very fact that we have reached this third line of defense is really very good news, because we understand that beyond it , with the exception of large fortified cities such as melitopol and tokmak , there are generally no more serious fortifications, at least it did not slip into the information space that the russians continue to dig in further than this so-called surovykin line in the zaporizhzhia district, the next serious fortifications have already been made as far as the perekop isthmus, and if this is really so, then even despite the fact that the weather is quite bad, but let me remind you that ukraine is a huge network of roads and surfaces, then with light ar