U.S.: strategical aircraft heading east. Iran's target?

Air traffic monitoring channels show information about a shift from the continent of American aircraft refueling eastwards. The goal may be the mediate East, although any of these machines may be transferred first to US bases in Europe, which could be a good starting point for specified machines in the mediate East. **Most of the machines utilized are old KC-135 based on Boeing 707, but they are besides newer KC-46 based on Boeing 767**.