Vietnam: Secret Negotiations that Ended the War
Guerre du Viêtnam - Au coeur des négociations secrètes (original)
While the war raged on, Henry Kissinger, national security advisor to President Nixon, and Lê Duc Tho, member of Vietnam's Politburo, held secret meetings in France.
Starring
It's a documentary and family movie, and has a rating of 6.8 out of 10 from Imdb which is usually fine for this kind of movie.
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Not found streaming from United Kingdom.