Ukraine doesn't really have the firepower to hit back. All territories it loses are really hard to recover. Russia is also sprinting to take the Dniepr river wh

Ukraine doesn't really have the firepower to hit back. All territories it loses are really hard to recover. Russia is also sprinting to take the Dniepr river which would make any counter-attack nearly impossible. They are also going for encirclement of areas they can't capture east of the river, breaking out of a modern siege is also really hard. Russian strategy would be to encircle the cities and Ukrainian forces, demand surrender or shell otherwise.