The Saladin Ayubi Brigade was a mainly-Syrian Kurdish armed rebel group that fought in the Syrian Civil War as part of the Free Syrian Army. Formed in May 2012 and named after the early Kurdish Muslim leader Saladin, the group was led by defected Syrian Army Captain Bewar Mustafa and fought against Syrian government forces in and around the city of Aleppo. It was also strongly opposed to the Kurdish-led Democratic Union Party (PYD), and have clashed with the PYD-affiliated People's Protection Units (YPG) and the Women's Protection Units (YPJ) several times.

The 23rd Division or 16th Infantry Division was a Syrian rebel group affiliated with the Free Syrian Army. Formed in September 2013, the group was active mainly in the city Aleppo and its surroundings. After rebel lines in Aleppo collapsed due to advances by the Syrian Army during the Battle of Aleppo in mid-2016, the 16th Division suffered heavy casualties and was dissolved. Remnants of the group then formed the 23rd Division. The Syrian National Army faction of the group in northern Aleppo was disbanded after its leadership was attacked by the Levant Front in August 2020, with its other members were transferred to other groups under the SNA's 3rd Legion.