Some say "traditionally it was Persia, so it's Persia".
Some say "Russia is the major bear ensign right now, so it's Russia".
I say Russia just got an extra point. Ancient Persia reached into modern Russia:
Darius I stele found in southern Russia may become world sensation
Science & Space
August 05, 4:32 UTC+3
KRASNODAR, August 4. /TASS/. Archeologists doing excavations in the area of antique town of Phanagoria in the Temryuk district of Russia’s southern Krasnodar territory have discovered fragments of a marble stele carrying an inscription of the ancient Persian King Darius I, the press service of the Volnoye Delo foundation said in a press release on Thursday.
So, a Persian king erected a victory stele in Krasnodar?
Well, Krasnodar is in Biblical Persia, then!
Other indication of connexion: in Russian fairy tales, Ivan Czarewic regularly travels through "29 kingdoms and 30 countries" before reaching his goal - usually without linguistic problems.
29 - 30 satrapies were there in the Acamenide Empire. In all of them, Ancient Persian could be used without trouble.
Hans Georg Lundahl
St Severus of Vienne