Historical clue formulations

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