What happened May 1982AD in Iran

Under heavy Iranian pressure, the Iraqi forces retreated. By 12 May, Iran had driven out all Iraqi forces from the Susangerd area.

In the early morning hours of 23 May 1982, the Iranians began the drive towards Khorramshahr across the Karun River. This part of Operation Beit ol-Moqaddas was spearheaded by the 77th Khorasan division with tanks along with the Revolutionary Guard and Basij.

The Iranians hit the Iraqis with destructive air strikes and massive artillery barrages, crossed the Karun River, captured bridgeheads, and launched human wave attacks towards the city. Saddam's defensive barricade collapsed; in less than 48 hours of fighting, the city fell and 19,000 Iraqis surrendered to the Iranians.