Seems to be the case. Let your country absorb the blows in the opening days when the US and Israel are at full combat capability. Once their munitions start running low and fatigue affects their pilots, you bring out your big guns and strike back. (Or at least I hope that's what's happening)That’s because both the air crew and equipment are getting worn down the longer this stupid thing goes on. Air crew get tired/complacent and the airframes become less reliable.