Doha: Washington and the Taliban are set to sign a deal on Saturday to secure America's exit from its longest war through gradually withdrawing troops and starting talks between Kabul and the insurgents.
The agreement will likely herald the start of a hopeful new era for Afghanistan, which has seen 40 years of conflict.
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But what happens next is anyone's guess, with questions swirling around the Taliban's intentions and Afghanistan once more in the grip of a political crisis threatening to plunge the impoverished country further into the abyss.
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The accord, to be signed in Doha, came after more than a year of talks between the Taliban and the US that faltered repeatedly as violence raged.
While the contents of the deal have not been publicly disclosed, it is expected to see the Pentagon begin pulling troops from Afghanistan, where between 12,000-13,000 are currently based.
The US has said that an initial drawdown over the coming months would be to about 8,600 -- similar to the troop level President Donald Trump inherited after his 2016 election win.
Further reductions depend on how well the Taliban honour pledges to start talks with the government of President Ashraf Ghani -- who until now they have dismissed as a US-backed puppet -- and seek a comprehensive "intra-Afghan" ceasefire and peace deal.
The insurgents are also supposed to guarantee Afghanistan is never again used by jihadist groups such as Al-Qaeda and Islamic State to plot foreign attacks -- a concept even some of Trump's closest advisors remain deeply sceptical of.
Saturday's signing comes after a week-long, partial truce that has mostly held across Afghanistan aimed at building confidence between the warring parties and showing the Taliban can control their forces.
While isolated attacks have continued in rural areas, US Secretary of State Mike Pompeo on Tuesday said that the truce period was "working". "We're on the cusp of an enormous, enormous political opportunity," he added.
More than 1,00,000 Afghan civilians have been killed or injured over the past decade, according to the United Nations, and the conflict has cost the US taxpayer more than USD 1 trillion in military and rebuilding costs since the US-led invasion of 2001.
As many as 30 nations are expected to be represented at Saturday's signing in the Qatari capital, although notably, the Afghanistan government will not send a delegate, an Afghan official told AFP.
"We are not part of these negotiations. We don't trust the Taliban," the official told AFP.