The 65-year-old was until now the chief of general staff of the armed forces and replaces Fahd Jassem al-Freij. Freij took over in July 2012 after predecessor Daoud Rajha was killed in the bombing of a command centre in Damascus, together with his deputy Assef Shawkat, who was Assad's brother-in-law .
Ayoub was born in Latakia, a coastal city in the heartland of the Alawite community to which Assad belongs.