If count how many bombings are occurring in Iran, yhe US is very clearly spread thin because they used to be going crazy early on but now they are just basically doing very occasional bombings, also they seem to have a heavy heavy shortage of bunker busters, or as i know, bunker busters need to be deployed from those aircraft carrier's (and they usually only carry 10), and an isreali flight needs aerial refuelers, thus eastern missile bases are almost completely immune to anything but strategic bombers and cruise missiles.