Related Clues:

• Armenia and Georgia, once: Abbr.
• SALT signatory
• Space race participant
• States under Stalin (Abbr.)
• Bygone pol. units
• Cold war initials
• Old map abbr.
• Est. and Lat., once
• Cold War side
• Former world power, briefly
• Communist powerhouse, once
• Former communist country
• Former world power, shortly
• Azerbaijan and Ukraine, once (Abbr.)
• Cold War participant