Related Clues:
- Second country to develop the atom bomb
- Former communist state
- Signer of the SALT agreements
- Former superpower
- 'Back in the ___' (Beatles song)
- 'Back in the ___' (Beatles tune)
- Foe in a four-plus-decade "war"
- Foe in a four-plus-decade 'war'
- Former Communist country
- Stalin's fed
- Country renamed in 1991
- Sputnik launcher, briefly
- Ger. invaded it in June 1941
- UN member, 1945-1991
- Brezhnev's fed