Iran's support of the Taliban is meant to destabilise Afghanistan and undermine international efforts for peace.
Iran's involvement in the Syria war has prolonged the conflict and inflamed tensions throughout the region, experts say.
With ISIL leaders being killed one by one in Afghanistan, Abu Bakr al-Baghdadi's loyalists don't have a chance of survival, observers say.
Air and ground assaults by Afghan troops and planes have blasted ISIL out of its foothold.
Afghanistan is going after drug use and traffickers to dry up terror financing.
Afghan forces confirmed killing brutal ISIL leader Saad al-Emirati along with about 120 other militants.
More than 80 peaceful demonstrators were killed and hundreds gravely wounded.
Mullah Haibatullah Akhundzada called for increased 'jihad', to which the people of Afghanistan reacted with strong condemnation and calls for peace.
Militants have no respect for Islam and the sanctity of the holy month, religious scholars say.
Forty-one countries sent delegations to discuss the struggle of organised religion against terrorism.