| Answer | Crossword Clue |
|---|---|
| SSR | Ukraine or Latvia: Abbr. |
| SSR | Latvia or Ukraine: Abbr. |
| SSRS | Latvia and Ukraine, once: Abbr. |
| SSR | Latvia or Armenia: Abbr. |
| SSR | Estonia or Latvia: Abbr. |
| SSR | Lithuania or Latvia, once (Abbr.) |
| SSR | Latvia or Lithuania, once (abbr.) |
| SSR | Belarus or Ukraine, once: Abbr. |
