Afghan President Ashraf Ghani is expected to face challenges in negotiations with the Taliban whose insurgency clouds Afghanistan's future.
In the coming weeks, Pakistan is set to execute hundreds of militants convicted on terrorism-related charges.
Officials say at least 17 people, including women and children, have been killed in separate attacks across Afghanistan.
The Pentagon says four detainees held at the Guantanamo Bay U.S. military detention facility have been repatriated to Afghanistan.
Pakistan has executed two militants after it reinstated the death penalty in the wake of an attack on a school that killed more than 140 people, most of them children.
Afghaistan's top soldier is optimistic about embarking on antiterrrorism cooperation with Pakistan.
The Afghan Taliban and government representatives are expected to resume stalled talks. Chinese and Pakistani representatives are also expected to participate in the negotiations.
Pakistan's army chief, Raheel Sharif, visited Kabul for talks with Afghan President Ashraf Ghani, and the two vowed to fight 'terrorism and extremism' together.
Pakistan has resumed the death penalty for convicted terrorists as the country mourns a terrorist attack on schoolchildren in the northwestern city of Peshawar.
European Union election observers have concluded that Afghanistan's disputed presidential elections this year were marred by widespread fraud.
The Pakistani Taliban says it attacked a Peshawar army school to exact revenge on the country's military.
A spokesman for the Pakistani military says an attack on an army-run school in northwestern Pakistan is over. Some 141 people, mostly children, were killed in the daylong siege.