T-55 Enigma - T-55, Type 59, and Type 69 tanks used by Iraqi Brigade commanders had appliqué armour on turrets and hulls composed of 3 (hull) or 6 (turret) layers of local-designed NERA (Non-explosive reactive armor) enclosed in steel boxes, this composite armor named unofficially as "Haji". Every NERA layer consists of 3 sublayes: a 10mm thick aluminium plate, a 4mm thick natural rubber (as reactive element) then a 4.7mm thick high hardness steel plate.[129] This crude type of buggling armor is less effective than Burlinghton or BDD ones,[130] but it was successful at defeating modern shaped charge warheads, During the battle of Khafji one unit is reported to have survived several hits from MILAN missiles (which can knock out a T-72M1 frontwise) before being dispatched by a helicopter