 The al-Tawhid Brigade participated in the Battle of Aleppo in late 2012 which led to the capture of the Aleppo Infantry School and the field commander, Colonel Yusuf al-Jader ("nom de guerre" Abu Furat al-Jarabulusi), was killed in action during the battle in December 2012.In early 2013, the Union of Battalions of Martyr Colonel Abu Furat was formed in Jarabulus.In June 2013, clashes erupted in the town between the group and the al-Nusra Front and the Islamic State of Iraq and the Levant, which resulted in ISIL taking full control of Jarabulus.