Fazal Hayat, more commonly known by his pseudonym Mullah Fazlullah, was an Islamist jihadist militant who was the leader of the Tehreek-e-Nafaz-e-Shariat-e-Mohammadi, and was the leader of the Tehreek-e-Taliban Pakistan in Swat Valley. On 7 November 2013, he became the emir of the Tehrik-i-Taliban Pakistan, and presided over the descent of the group into factions who are often at war with each other. Fazlullah was designated by the Al-Qaida and Taliban Sanctions Committee of the Security Council in 2015, and was added to the U.S. State Department's Rewards for Justice wanted list on 7 March 2018. Fazlullah was killed in a U.S. drone strike in Kunar, Afghanistan on 14 June 2018.

Operation Zarb-e-Azb was a joint military offensive conducted by the Pakistan Armed Forces against various militant groups, including the Tehrik-i-Taliban Pakistan (TTP), the Islamic Movement of Uzbekistan, the East Turkestan Islamic Movement, Lashkar-e-Jhangvi, al-Qaeda, Jundallah and Lashkar-e-Islam. The operation was launched on 15 June 2014 in North Waziristan along the Pakistan-Afghanistan border as a renewed effort against militancy in the wake of the 8 June attack on Jinnah International Airport in Karachi, for which the TTP and the IMU claimed responsibility. As of 14 July 2014, the operation internally displaced about 929,859 people belonging to 80,302 families from North Waziristan.