ARGONNE
| Date | Clue |
|---|---|
| 2022-09-04 | Forest between Champagne and Lorraine |
| 2018-03-02 | W.W. I battle locale |
| 2016-10-13 | French locale of fierce W.W. I fighting |
| 2016-07-09 | Where the Lost Battalion got lost |
| 2013-09-01 | 1918's Battle of the ___ Forest |
| 2009-03-07 | W.W. I battle locale near the Belgian border |
| 2006-09-20 | W.W. I battle locale |
| 2001-10-27 | French forest region |
| 1998-06-14 | ___ Forest (W.W. I battle site) |
| 1997-12-27 | World War I battle site |