keep in mind the region that theyre advancing through right now is probably the most densely populated urban sprawl in ukraine. russias recent progress there is absolutely insane. once they take pokrovsk its just hundreds of miles of the flattest farmland on earth until the carpathian mountains (which actually benefits ukraine in a way. they can just bunker up on the west bank of the dnieper river and drone swarm russian attempts at rapidly advancing through the flatlands).
United States