Historical clue formulations

• High-end private jet, familiarly — 2026-08-18
• Former alliance of France, Italy, Japan, the U.S., the U.K. and West Germany — 2026-06-07
• Eur. alliance — 2025-05-28
• Germany, France, the U.K., Italy, Spain and Poland, collectively — 2020-03-28
• E.U. alliance — 2019-12-07