The bring’em on analogy is appropriate but, to be more precise,  the US military itself has used the head on a Pike display many times in the past, most notoriiously in the mid-nineteenth century against own own inidigenous people.  There are pictures from that period (the most notorious were from Denver, Colorado) which confirm this.  Then, moving to the Philippines at the end of that same century,  there were more beheadings (with pictures of such also readily available today) of natives whose only “crime”, again,  was that of resisting the invading armed forces of the USA..  Of course our president will insist that America would never resort to such a cruel and inhumane practice as beheading, but our past speaks for itself.  As for the present?  When it’s a matter of beating down the natives, our method of choice for collective punishment is shooting innocent women and children, as in Haditha.  .

I didn’t think of “Bring it on” so much, but more ironic it is that our government tries to prevent photos of the coffins of our dead soldiers being published, let photos of actual bodies.  It’s a double standard.