In 2010, Biden reportedly told Richard Holbrooke, then Obama's special representative for Afghanistan and Pakistan, that the US had to leave Afghanistan regardless of the cost for the Afghan people.

Biden's remarks to Holbrooke were revealed in his diary, much of which was turned over to his official biographer George Packer following his death.

Holbrooke was appointed as a special advisor on Pakistan and Afghanistan in 2009 and was one of the Obama administration's principle advisors on US policy in the countries until his death in December of 2010.

According to his diary, Biden made his ruthless comparison between pulling out of Afghanistan and the withdrawal of US troops from southeast Asia just months before Holbrooke's died.

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