The Turkish-backed Free Syrian Army captures Al-Bab from ISIL.

The Free Syrian Army is a big-tent coalition of decentralized Syrian opposition rebel groups in the Syrian civil war founded on 29 July 2011 by Colonel Riad al-Asaad and six officers who defected from the Syrian Armed Forces. The officers announced that the immediate priority of the Free Syrian Army was to safeguard the lives of protestors and civilians from the deadly crackdown by Bashar al-Assad's security apparatus; with the ultimate goal of accomplishing the objectives of the Syrian revolution, namely, the end to the decades-long reign of the ruling al-Assad family. In late 2011, the FSA was the main Syrian military defectors group. Initially a formal military organization at its founding, its original command structure dissipated by 2016, and the FSA identity was later used by several different Syrian opposition groups.

The Battle of al-Bab was a battle for the city of al-Bab in the Aleppo Governorate that included a military offensive launched by Syrian rebel groups and the Turkish Armed Forces north of al-Bab, a separate Syrian Democratic Forces (SDF) offensive east and west of the city, and another Syrian Army offensive from the south of the city. The northern Turkish-led forces intended to capture al-Bab from the Islamic State of Iraq and the Levant (ISIL), as part of the Turkish military intervention in Syria. By the end of the battle, the Turkish-led forces had captured al-Bab, Qabasin, and Bizaah, while the Syrian Army captured Tadef and other areas further south, with the SDF making gains further to the east and the west.

The Islamic State (IS), also known as the Islamic State of Iraq and the Levant (ISIL), the Islamic State of Iraq and Syria (ISIS) and Daesh, is a transnational Salafi jihadist militant organisation and was a unrecognised quasi-state. IS occupied significant territory in Iraq and Syria in 2013, but lost most of it in 2017 and 2019. In 2014, the group proclaimed itself to be a worldwide caliphate, and claimed religious and political authority over all Muslims worldwide, a claim not accepted by the vast majority of Muslims. It is designated as a terrorist organisation by the United Nations and many countries around the world, including Muslim countries.