Historical clue formulations

• Ally — 2024-10-12
• Join forces — 2022-07-15
• Ally (with) — 2018-07-24
• Join forces — 2017-03-01
• Band — 2011-10-29
• Get together for a task — 2008-08-27
• Partner (with) — 2006-08-31
• Ally — 2005-08-19
• Join forces (with) — 2004-04-05
• Join hands (with) — 1999-01-15
• Join forces (with) — 1997-04-02
• Collaborate (with) — 1996-08-10