URGENT: IRGC Air Defense Units shoot down two US LUCAS UAVs over Hormuzgan District Air defense units operating under the IRGC Imam Sajjad Corps have shot down two US-made UAVs over the coastal city of Bandar Hamir in Hormuzgan District, according to statements released by the Islamic Revolutionary Guard Corps (IRGC) public relations. The Revolutionary Guards confirmed that the double interdictions were carried out through Iran's integrated air defense network, when the plane breached restricted airspace near the strategic Strait of Hormuz.