 The attack started on a rainy day and hope was that cloud cover would shield them from Iraqi air attacks.Once the clouds lifted, Iraq conducted 150 air sorties, which generated a 3 to 1 kill ratio of Iranians to Iraqis.The Iraqis, sensing the efficacy of close air attacks, directed aerial bombings on the cities of Dezful, Ahvaz, and Khoramshahr in retribution for the Iranian Dawn 1 offensive.