the lines of communication through lviv are still very solid. can you still push well into the country from there. again, how long you can do that i'm not sure. it obviously depends on the success of the russians trying to encircle kyiv and eventually really laying siege to kyiv. because it's very clear that they're unable to achieve the kinds of combined arms effects of infantry armor, artillery engineers all together with air assets integrated with that. and the way you would normally want to enter a city and attack those areas and only those areas that are the source of the resistance. instead what they're doing, of course, is just indiscriminately shooting missiles and rockets and artillery into these cities enormous salvos of them already killing innocent civilians and as your piece also noted, again, i think that putin clearly has crossed the line to become a war