Historical clue formulations

• Specialized group — 2022-11-18
• Close-knit group — 2021-05-10
• Group of officers — 2020-03-24
• Specialized military group — 2019-10-14
• Band of warriors — 2017-11-04
• Military group — 2016-04-01
• Tight group — 2016-02-07
• Training group — 2014-08-07
• Fighting group — 2014-07-13
• Inner circle — 2014-01-15
• Military group — 2013-07-29
• Core group — 2013-01-09
• Core members — 2012-08-16
• Training unit — 2011-12-16
• Key group — 2011-06-19
• Core group — 2010-10-13
• Core military group — 2010-02-07
• Training staff — 2008-07-06
• Band of fighters — 2007-01-28
• Training group — 2006-09-04
• Nucleus — 2005-02-05
• Inner circle — 2003-10-05
• Training staff — 2002-05-05
• Training group — 2000-09-26
• Core group — 2000-09-25
• Group of key officers — 2000-05-22
• Training group — 1999-11-30
• Organizational core — 1999-09-25
• Corps core — 1999-04-18
• Skilled force — 1999-02-20
• Inner circle — 1998-08-17
• Training group — 1997-07-08
• Fighting force — 1997-06-06
• Corps unit — 1997-01-05
• Military group — 1996-02-27
• Leadership group — 1995-01-02
• Military group — 1994-10-27
• Terrorist cell — 1994-01-02