WASHINGTON: Afghan leader Ashraf Ghani and the head of the country's peace process will meet US President Joe Biden at the White House on Friday (Jun 25), as uncertainty mounts over Afghanistan's future after the American military withdrawal.

Biden has ordered the departure of all US forces from Afghanistan by this year's 20th anniversary of the Sep 11 attacks that triggered the invasion. In moving to end America's longest war, the president has said he believes that no more can be achieved.