| Clue | Source | Date |
|---|---|---|
| Latvia and Lithuania, once | LA Times Daily | 12 Apr 2018 |
| Latvia and Lithuania, once | The Washington Post | 12 Apr 2018 |
| Latvia and Lithuania, once | ||
| Countries controlled by or dependent on another | ||
| Romania and Bulgaria, once | ||
| East Germany and such | ||
| Latvia and Estonia, once | ||
| Superpowers often have them | ||
| Latvia and Estonia, once |