Battle of Maarat al-Numan (2016)
On 13 March 2016, jihadist fighters from Al-Nusra Front and Jund al-Aqsa launched an overnight attack against the Free Syrian Army's 13th Division headquarters in the town of Ma'arrat al-Nu'man. According to social media activists in support of the Syrian opposition, Jabhat al-Nusra attacked Division 13 over local protesters and demonstrations.
Source: Wikipedia — Battle of Maarat al-Numan (2016) (CC BY-SA 4.0)