artillery and then the introduction. we know they have them with them and some inintroduction of bombs which are bombs that have fuel in them and they create just bastions of fire as a result of it. they are quite devastating. they have used them on the ukraine military back in 2014 and would take down entire battalion assembly area in a matter of minutes. that's what could be the foretell of things to come if the operational ground units are not able to make progress, then they will begin the systematic rubling of the city, which is a decision they have been trying to avoid for all the obvious reasons. russia is facing significant international condemnation as it is. they don't want further pushback from their own population when a plan like this unveils.