US secretary of state John Kerry has said Afghanistan's recent peace deal with a notorious warlord could be a model for reconciliation with the Taliban.
Mr Kerry said last week's agreement with Gulbuddin Hekmatyar requires his commanders to cease violence, cut ties with terrorist groups and accept the Afghan constitution's rights for women and minorities. In return, he can rejoin Afghan society.
The September 29 peace treaty was Afghanistan's first since the Taliban's overthrow in 2001.
Hekmatyar is believed to have killed thousands of Afghans. The US declared him a "global terrorist" in 2003, while the UN blacklisted him that same year. Both are considering lifting sanctions.
Mr Kerry said at an Afghanistan conference in Brussels that the Taliban should take note, and said a political settlement is the honourable way to end the conflict.