Related Clues:
- Communist powerhouse, once
- Former communist country
- Former world power, shortly
- Cold War participant
- Former Olympic team
- Former 'evil empire'
- Former empire
- Cold War power
- WWII power
- Moscow's land, once: Abbr.
- Country founded in 1922: Abbr.
- Where Kalinin was pres.
- Sputnik's birthplace
- Locale in a Beatles song
- 'Back in the ___'