Joe Biden vows to keep troops in Afghanistan until all Americans evacuated

President Joe Biden has defended the withdrawal from Afghanistan (Susan Walsh/AP)

President Joe Biden has said he is committed to keeping US troops in Afghanistan until every American is evacuated even if that means maintaining a military presence beyond his August 31 deadline for withdrawal.

He also hit back at criticism that the US should have done more to plan for the evacuation and withdrawal, which has been marked by scenes of violence and chaos as thousands attempted to flee while the Taliban advanced.