In 1969, at the height of US presence, there were over half a million Americans in Vietnam.

But why were they there in the first place? When did the conflict in Vietnam begin and how did it escalate towards US involvement?

Pierre Asselin is the author of A Bitter Peace: Washington, Hanoi, and the Making of the Paris Agreement and Hanoi’s Road to the Vietnam War, 1954-1965. He and Don discuss the origins of the Vietnam war in domestic and international relations.

Produced by Sophie Gee. Edited by Siobhan Dale. Senior Producer was Charlotte Long.

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