Al-Fao was a project for a self-propelled artillery system designed for the former Iraqi Army by the Canadian weapons engineer Gerald Bull.
It would have been one of the world's most powerful artillery pieces, with a 53-caliber, 210 mm (8.3 in) gun firing 109-kilogram shells over a range of 57 km (35 mi).
[2] A self-propelled howitzer using the same 155 mm gun as the South African G6, similar to the Al-Fao and named Majnoon, was also designed by Gerald Bull on an Iraqi order.
That year, South Africa had tried to sell the G6 howitzer to Iraq, but the Iraqis found it too expensive, and requested that Bull design two equivalents for them.
Numerous French, German and Spanish companies were contracted to manufacture parts for the guns, while the design for the chassis was bought in Czechoslovakia and modified to South African specifications.