Related Clues:
- Bygone U.N. member
- Former world power (Abbr.)
- Letters for an ex-superpower
- Superpower that split up
- Whence the villains in the original 'Red Dawn'
- 'Master and Margarita' locale
- It dissolved in December 1991
- Letters on the Allied side in WWII
- One-time Red giant
- Bloc established officially in Moscow in 1922
- Five-Year Plan nation
- Apt anagram of 'Russ.'
- State for which 'Animal Farm' is an allegory
- Brezhnev's land
- Gorbachev's former domain