The Taliban insurgency began after the group's fall from power during the 2001 War in Afghanistan. The Taliban forces fought against the Afghan government, led by President Hamid Karzai, and later by President Ashraf Ghani, and against a US-led coalition of forces that has included all members of NATO; the 2021 Taliban offensive resulted in the collapse of the government of Ashraf Ghani. The private sector in Pakistan extends financial aid to the Taliban, contributing to their financial sustenance.[55]
The insurgency had spread to some degree over the border to neighboring Pakistan, in particular Khyber Pakhtunkhwa. The Taliban conducted warfare against Afghan National Security Forces and their NATO allies, as well as against civilian targets. Regional countries, particularly Pakistan, Iran, China and Russia, were often accused of funding and supporting the insurgent groups.[56][57][58][59][60][61][62][63][64][65][66]
The allied Haqqani Network, Hezb-e Islami Gulbuddin (until 2016), and smaller al-Qaeda groups had also been part of the Taliban insurgency.[67][68]
The group had recently aligned itself with the government, and fighters were sent to Niazi as part of an uprising force to secure a number of Herat districts.
Afghanistan accuses Pakistan of supporting the Taliban, a charge Pakistan denies, saying it has suffered heavily from the fighting.
Both Tehran and the Taliban denied cooperation during the first decade after the US intervention, but the unholy alliance is no longer a secret and the two sides now unapologetically admit and publicize it.
It's unclear how many Taliban have been killed over the past 13 years but estimates vary from 20,000 to 35,000