Historical clue formulations

• Feared force — 2012-11-18
• "Casablanca" villains — 2012-07-19
• Like brutal tactics — 2010-10-29
• Brutal force — 2010-03-05
• Suppressing opposition brutally — 2003-11-08
• "Hogan's Heroes" villains — 2000-10-22
• "The Diary of Anne Frank" villains — 1998-04-23
• Heavy-handed group — 1997-05-31
• Himmler's command — 1996-07-19
• 30's-40's force — 1996-03-23