Why do the authors of your text use the word "domain" when talking about "the Russian Domain"?
◦ "Russian Domain" is an official name, reflecting the continuing federal relationship between the countries in the region.
◦ The term suggests persisting Russian influence within the region.
◦ The term is the name of the free trade zone now evolving in the region.
◦ Domain refers to a kingdom.
◦ Domain refers to a federal subdivision.