Comment by thisislife2

There are some factors - this is an offensive being done to prop up Netanyahu's regime in Israel and distract the Americans from the Espstein files. The US thus means to keep it short-term. Moreover, in the middle-east, the American logistic chain runs through its Arab allies in the middle-east, and Iran has explicitly said that it will not hesitate to target its Arab neighbours, hosting American military bases, if the US attacks it. (And that's why it has retaliated against these American allies when it was attacked). Except for Saudi Arabia, these countries do not wish to get into a war with Iran for Israel, and have no interest in joining the war because Iran's missiles are quite precise and effective at short ranges (meaning they and their people will be facing the brunt of the war that they have no interest in). Thus, the US military is actually hampered because it cannot do anything without the host governments permission. (For example, during the last Iran attack, some allies did not allow the US to implement a nationwide jam of the GPS over its airspace). All this highlights the really hard balancing the US has to do to even agree to bomb Iran for a few days - one wrong move and the whole of middle-east can explode, and both the US and Israel will find itself on the receiving end as American and world public opinion turns against it.