| Answer | Crossword Clue |
|---|---|
| SYST | Part of S.S.S.: Abbr. |
| SYS | Part of S.S.S.: Abbr. |
| SYS | S.S.S. part: Abbr. |
| SOV | The first "S" in S.S.R.: Abbr. |
| SOC | Part of S.S.N.: Abbr. |
| UKR | Part of U.S.S.R.: Abbr. |
| ENV | Part of S.A.S.E.: Abbr. |
| SOV | Part of U.S.S.R.: Abbr. |
| SOC | Part of U.S.S.R.: Abbr. |
| UKR | Former part of the U.S.S.R.: Abbr. |
| SOV | U.S.S.R. part: Abbr. |
