Moscow offered two explanations on Monday as to why its Russian-made Pantsir S-1 missile defense system embarrassingly took a direct hit during an Israeli airstrike last week. "One is that it had already used up its ammunition reserve," Aytech Bizhev, the former deputy commander-in-chief of the Russian Air Force, said, according to RT. "The other is that it was simply turned off; it wasn't battle ready." Israeli fighter jets struck dozens of Iranian military sites in Syria last Thursday, killing at least 23 people, including 5 Syrian soldiers.