Historical clue formulations

• One who's out of action? — 2021-02-12
• Longtime — 2014-12-26
• Purple Heart recipient, e.g. — 2014-09-08
• Bonus Army member — 2007-12-21
• Longtime — 2007-08-09
• Practiced — 2005-12-23
• Experienced — 2005-07-24
• One who's seen combat — 1994-10-16