<Ul> <Li> Ingushetia </Li> </Ul> <Li> Russo - Georgian </Li> <Li> Ukraine <Ul> <Li> Crimea </Li> <Li> Donbass </Li> </Ul> </Li> <Ul> <Li> Crimea </Li> <Li> Donbass </Li> </Ul>

Which of these countries is most closely related to the soviet union