Historical clue formulations

• 1960s service site, informally — 2026-09-21
• "The Deer Hunter" setting, in brief — 2026-07-08
• "Platoon" setting, in brief — 2026-04-06
• War zone for Rambo, informally — 2026-01-04
• "Platoon" setting, for short — 2025-12-18
• ’60s war zone — 2025-07-13
• "Fortunate Son" subject, informally — 2025-02-21
• "Tropic Thunder" setting, for short — 2024-11-23
• "Apocalypse Now" setting, informally — 2024-09-21
• "South," in Hanoi — 2024-03-10
• Where 38-Down served, for short — 2023-11-01
• "South," in Hanoi — 2023-06-24
• Where some vets were based — 2022-12-02
• "Full Metal Jacket" setting, in brief — 2021-08-04
• '60s war zone — 2020-05-31
• War zone for Rambo, informally — 2020-05-25
• Where many draftees were sent in the '60s — 2020-02-24
• Origin of many refugees once in 26-Across, for short — 2019-12-21
• Service site for many a vet — 2019-07-18
• '60s conflict site — 2019-06-04
• Subject of the 1977 best-selling memoir "A Rumor of War," for short — 2019-04-06
• Where G.I.s fought in the '60s — 2018-10-02
• Setting for many G.I. stories — 2018-08-05
• Setting for part of "Forrest Gump," for short — 2018-07-27
• '60s service site — 2018-05-18
• Subject for Ken Burns, briefly — 2018-04-29
• Marvel series depicting the Tet Offensive, with "The" — 2018-02-10
• Subject of a 10-part 2017 Ken Burns documentary on PBS, for short — 2017-10-05
• Subject of Noam Chomsky's "American Power and the New Mandarins," briefly — 2017-09-16
• What several characters in "Coming Home" came home from, informally — 2017-06-15
• "Apocalypse Now" setting, familiarly — 2016-11-16
• "Smokey, this is not ___. This is bowling. There are rules" ("The Big Lebowski" quote) — 2016-10-27
• Place of service for John McCain, briefly — 2016-10-04
• "Forrest Gump" setting, for short — 2016-01-31
• Where Forrest Gump fought, for short — 2015-12-09
• Where 25-Across served in the late '60s — 2015-11-28
• Where the VC fought — 2015-11-07
• '60s war zone — 2015-03-15
• Old service site, informally — 2014-12-11
• Pentagon Papers subject, for short — 2014-11-23
• '60s service site — 2014-06-15
• '60s war zone — 2014-02-09
• Charlie's land — 2013-11-09
• '60s war zone — 2013-07-11
• "Apocalypse Now" setting, informally — 2013-04-15
• Subject of the Pentagon Papers, informally — 2013-03-31
• '60s service site — 2013-03-15
• Many vets recall it — 2012-11-30
• Subject of three Oliver Stone films, informally — 2012-11-04
• '60s war locale — 2012-07-17