President Joe Biden plans to withdraw the remaining 2,500 US troops from Afghanistan by Sept 11, 2021, 20 years to the day after the al-Qaeda attacks that triggered America's longest war, US officials said on Tuesday.

The disclosure of the plan came on the same day that the US intelligence community released a gloomy outlook for Afghanistan, forecasting "low" chances of a peace deal this year and warning that its government would struggle to hold the Taliban insurgency at bay if the US-led coalition withdraws support...