Historical clue formulations

• Relentless campaign — 2024-06-24
• Intense movement — 2023-05-06
• Vigorous campaign — 2021-11-16
• Aggressive campaign — 2021-07-22
• Campaign — 2012-05-02
• What a cause might turn into — 2007-10-06
• Cause — 2004-02-28
• Campaign — 2003-06-06
• More than a cause — 1999-12-19
• Holy war — 1998-05-03
• Campaign — 1998-04-19