WASHINGTON (REUTERS) - US President Joe Biden has picked veteran diplomat Lee Wolosky to help coordinate the resettlement of refugees from the war in Afghanistan, an administration official said on Wednesday (Sept 8).

Mr Wolosky will serve in the White House Counsel's Office and will work with officials with the National Security Council and other top administration aides to provide legal expertise on resettlement issues, the official said, speaking on condition of anonymity.

The United States has evacuated tens of thousands of Afghans from their home country during Biden's withdrawal from that country after 20 years of war, a hasty pullout that has drawn sharp criticism.

Mr Wolosky previously served as US special envoy for then-President Barack Obama in his efforts to close the US military prison facility at Guantanamo Bay, Cuba. He was in the position from July 2015 to January 2017.

During his tenure, Mr Wolosky negotiated with a range of countries to repatriate or accept the resettlement of dozens of inmates as the administration sought unsuccessfully to empty the facility before Mr Obama's successor, Mr Donald Trump, took office.

Mr Wolosky helped Mr Obama whittle down the inmate population there to only 41 by the end of his term but still short of the Democratic president's promise to close the jail dating back to his 2008 presidential campaign. Thirty-nine prisoners are currently held at Guantanamo.

Mr Wolosky served as director of transnational threats on the National Security Council for both Bill Clinton and George W. Bush during their presidencies.

Mr Wolosky was also the attorney for Ms Fiona Hill, a Russia specialist who served on the National Security Council for Mr Trump, when she provided testimony in the impeachment inquiry that looked into whether Mr Trump asked Ukraine to investigate Mr Biden in return for a White House meeting or the release of US security aid.