Historical clue formulations

• Narrow channel — 2025-10-16
• ___ of Hormuz — 2018-12-12
• Narrow passage for ships — 2018-07-10
• Tough situation — 2018-06-08
• Narrow waterway — 2017-10-01
• Passage off Gibraltar, e.g. — 2017-05-17
• Narrow water passage — 2017-03-27
• Narrow marine passageway — 2014-10-06
• ___ of Gibraltar — 2014-02-05
• Naval route — 2011-04-13
• Narrow waterway — 2010-01-24
• Narrow way — 2009-11-15
• Nautical passage — 2009-03-15
• Sea route — 2008-06-29
• Ship's passage — 2006-11-30
• Predicament — 2004-03-01
• Narrow passage — 1999-10-30
• Commercial passage — 1999-02-28
• Sea route — 1997-06-24
• Mariner's passage — 1996-03-12
• Shipping route — 1994-10-02
• Magellan, e.g. — 1994-01-24