On April 14, President Joe Biden will formally announce his decision to withdraw all American troops before September 11, the 20th anniversary of the terrorist attacks on the World Trade Center and the Pentagon that led the US into its longest war.
Mandatory Credit:	Jim Watson/AFP/Getty Images

On April 14, President Joe Biden will formally announce his decision to withdraw all American troops before September 11, the 20th anniversary of the terrorist attacks on the World Trade Center and the Pentagon that led the US into its longest war.
Mandatory Credit: Jim Watson/AFP/Getty Images

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Biden prepares to leave America's longest war

It's an image President Joe Biden kept returning to: the sight of helicopters evacuating Americans from Saigon during the last major battle of the Vietnam War.