Zalmay Khalilzad tweeted that building on excellent progress in Kabul last week, he spent the last few days in Doha focusing on the remaining issues in completing a potential deal with the Taliban. He said the conclusion of a deal would allow for a conditions-based troop withdrawal.
Khalilzad said that the four pillars of any deal would be a US withdrawal from Afghanistan, a commitment by the Taliban not to shelter militants, an intra-Afghan dialogue, and a ceasefire.