Saad Haddad is the founder of the Army of Southern Lebanon (ALS).

At the beginning of the war of Lebanon, Haddad was officer of the Lebanese Army, and it was charged to carry out a battalion of the Army to fight the militiamans of PLO in the South of the country. It made defection and collaborated with Israel which armed its militia, equipped it and transmitted the political orders to him.

The ALS is regarded as the representative of Israel in occupied South-Lebanon, in the “security zone” created after the invasion of 1982.

Saad Haddad dies in 1984 of a Cancer. The general Antoine Lahd succeeds to him.