They've attacked everyone they possibly could with ZERO regard for anything. They attacked Cyprus! They've attacked Turkey. They've attacked Afghanistan (are you seriously going to claim Afghanistan is harboring the US army?) They've attacked everyone they possibly could attack, zero exceptions.

Next time all the gulf countries will know: get America and everyone else to launch attacks against Iran from your soil. Make sure to participate. Why? Iran will attack everyone regardless of alliances, who attacks, whether anyone attacks at all, what bases exist, whether or not they participate, or whether they avoid hostilities. So obviously, it's better to be part of the hostilities against Iran, to have an army on your soil that will protect at least some of your territory.