Historical clue formulations

• Outfit for G.I. Joe — 2025-11-08
• "Be all you can be" sloganeer — 2023-11-21
• Onetime "Be all you can be" sloganeer — 2015-08-09
• Grp. whose seal has the words "This we'll defend" — 2011-02-20
• G.I.'s org. — 2011-01-04
• Company man's grp.? — 2010-01-16