Another group, Liwa al-Islam, or the brigade of Islam, also claimed credit for the attack.
The brigade in the footage is said to comprise about 20 French nationals and 20 Belgians.
Formerly an officer in Assad's Army, he deserted seven months ago and now commands some 120 soldiers in the al-Faroukh brigade.
"subdivision of an army," 1630s, from French brigade "body of soldiers" (14c.), from Italian brigata "troop, crowd, gang," from brigare "brawl, fight," from briga "strife, quarrel," perhaps of Celtic (cf. Gaelic brigh, Welsh bri "power") or Germanic origin.