The Haqqani Network was formed by Jalaluddin Haqqani, who fought against Soviet forces in Afghanistan in the 1980s. In 1995, the Haqqani Network allied with the Taliban and the two groups captured the Afghan capital Kabul in 1996. In 2012, the US designated the group a terrorist organization. On September 4, 2018, the Taliban announced that Jalaluddin passed away after a long illness.

Jalaluddin Haqqani was born in 1939 in the Afghan province Paktia. He studied at Darul Uloom Haqqania, which was founded in 1947 by the father of one of Pakistan's most prominent religious leaders, Maulana Sami ul Haq. Darul Uloom Haqqania is known for its alleged ties with the Taliban and other extremist groups.

Jalaluddin was made minister for Afghan tribal affairs under the Taliban rule. He remained in the post until the US toppled the Taliban regime in 2001. After the Taliban leader Mullah Omar, Jalaluddin was considered the most influential militant figure in Afghanistan. Jalaluddin also had close links with the former al Qaeda leader, Osama bin Laden.

Security experts say the command center of the group is based in Miranshah city of Pakistan's North Waziristan region along the Afghan border. US and Afghan officials claim the Haqqani Network is backed by the Pakistani military, a charge denied by Pakistani authorities. Washington says the group's fighters launch attacks on foreign and local troops and civilians inside Afghanistan.

It is believed that Jalaluddin Haqqani died in 2015, but his group denied those reports at the time. The network is now headed by Sirajuddin Haqqani, Jalaluddin's son. Sirajuddin is also the deputy chief of the Taliban.

Although there isn't much credible information available about Sirajuddin Haqqani, security experts say he spent his childhood in the Pakistani city of Miranshah. He studied at Darul Uloom Haqqania, situated in Peshawar's suburbs. Sirajuddin is believed to be an expert on military affairs. Some analysts say Sirajuddin's views are more hard line than his father's.

One of Jalaluddin's sons is Anas Haqqani, whose mother hailed from the United Arab Emirates. He is currently in the custody of the Afghan government and is facing the death penalty. The Haqqani Network has warned Kabul of dire consequences if Afghan authorities hang Anas Haqqani.

Research institutes and Afghan affairs experts say the group has between three and ten thousand fighters. The network allegedly receives most of its funding from the Gulf countries. The Haqqani Network is also involved in kidnappings and extortion through which it funds its operations.

The Haqqanis have close relations with other regional and international terrorist organizations such as al Qaeda, the Tehreek-i-Taliban Pakistan (TTP), Lashkar-e-Taiba and Central Asian Islamist groups. Jalauddin Haqqani was not only close to bin Laden, but also had ties with al Qaeda's current chief Ayman al-Zawahiri.