Of course this is part of it, but as it has been explained to me, there is much more hatred towards the British over this than towards us. Afterall, they were the ones who put them there to begin with.
But the immediate fight of any revolutionaries would be against whoever is currently helping their government suppress the revolutionaries.
I seem to remember all but one of the 911 hijackers were from the same place--and it was not Palistine.