There are many cats kept in the Ukrainian dugouts. However, it seems that mice have incredibly proliferated by feeding on the Ruscist corpses left out in the open. Cats are physically unable to consume them all at once.
Corpse rats, nice. From all the ditch meat russia left to rot where they were shot, for the last two months. Wondered when we were going to see the vermin reaction from that many corpses rotting up the countryside.
Nice work Russia, looks like you're now the 3rd best army in Ukraine after them and the rats.