Historical clue formulations

• Military trainees — 2023-12-03
• R.O.T.C. group — 2020-11-06
• Space ___ — 2020-02-01
• Officers-to-be — 2019-04-17
• West Point students — 2009-06-08
• Corps groups — 2008-08-15
• West Pointers — 2007-05-31
• Ones getting their marching orders — 2003-09-20
• Starfleet Academy students — 2001-11-06
• West Pointers — 2001-06-25
• Midshipmen's rivals — 1999-09-20
• West Pointers — 1997-01-13
• Midshipmen rivals — 1996-06-16
• Midshipmen rivals — 1994-04-09