Historical clue formulations

• Country whose cuisine includes pho and banh mi — 2024-05-27
• After Brazil, the world's second-largest producer of coffee — 2024-03-15
• Hanoi is its capital — 2015-12-07
• "Platoon" setting — 2014-05-04
• _____ Memorial — 1995-12-03
• Where Caodaism is practiced — 1994-05-01