Where was The Green Berets filmed?
1968 film directed by John Wayne and Ray Kellogg
The Green Berets (1968) was filmed in Fort Benning, 1 place named in its Wikipedia article's Filming section, in the United States. Wikidata itself records the shoot only as Georgia. Each place says where its claim comes from.
Places per Wikipedia's Filming section
Wikipedia’s Filming section names 1 place. Each links to the sentence that says so.
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Towns & cities
Fort Benning
United States
United States Army post outside Columbus, Georgia, previously known as Fort Moore
“Much of the film was shot in the summer of 1967 (before the Tet Offensive) at Fort Benning, Georgia.” Wikipedia
Recorded only at country level
Also filmed in Georgia, but the exact places are not known, so they are not on the map.
Filming locations that are mapped there: United States