Synopsis
Peter and Dan Snow reveal the techniques use by US marines to flush out Communist fighters who lived in a network of tunnels during the Vietnam War.
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Episode 2 | The Great American Buffalo
By the late 1880s, the buffalo teeter on the brink of extinction, but an unlikely collection of Americans have started a few private herds in different locations, and for different reasons.

Episode 1 | The Great American Buffalo
Ken Burns recounts how the collision between two opposing views of the natural world saw the buffalo, which had numbered in the tens of millions, driven to the brink of extinction.