The Fatemiyoun Brigade and Zainebiyoun Brigade, comprised of Afghan and Pakistani Shia mercenaries, are fighting for the Syrian government.
Civilians have endured the worst in Afghanistan's multi-decade war against militants, observers say.
A new video that shows very young boys executing men who oppose the 'Islamic State of Iraq and the Levant' is blatant child abuse, experts say.
At least 10,000 militants have massed along the Tajik-Afghan border, authorities say.
Over 11,000 civilians, including nearly 4,000 children, were killed by militants in 2016, in what Islamic scholars say is murder not 'jihad'.
A long list of Taliban atrocities against civilians has increased the public's trust in security forces and boosted co-operation, officials say.
After putting the Taliban on the defensive, Afghanistan must close the door on the 'Islamic State of Iraq and the Levant' (ISIL), analysts say.
More than 900 children were killed in the war last year, raising concerns that the violence is escalating.
No group has claimed responsibility but the Taliban targeted the court previously and vowed further attacks against the judiciary.
Operations against all militant groups including the 'Islamic State of Iraq and the Levant' (ISIL) will continue this winter, officials say.