Though Iran's attack was almost wholly intercepted, by the combined Israeli-American efforts, this was no victory over Iran. Mike explains why a defensive strategy can never defeat an offensive dominant one. Then there is also the high cost of the defense systems relative to cheapness and quantity of Iran's drones and missiles. Iran has also collected a great deal of intelligence about the systems it is facing. But above all it successfully changed the rules of the game - and the US has let it do so. It now remains to be seen how Israel will respond.