Well under Dubya it was pretty successful. Firstly, there was never a repeat of 9/11. Secondly, they pulled off one of the most overwhelming military victories of all time against Iraq, a full-blown invasion completed in weeks with hardly any losses. This also secured Israel’s long term prospects in the region, which seems to be one of the most sacred directives of American policy. It did also lead ultimately to civil war in Syria and political destabilisation in Germany/Europe (from refugees), but that is no skin off Uncle Sam’s nose. You may not like it, but in the history books that’s what peak foreign policy looks like.