User blog comment:KennyChief/S.H.I.E.L.D. is a UNITED STATES GOVERNMENT organization, not International./@comment-996391-20151011104323

It appears S.H.I.E.L.D. was strictly American until the events of Iron Man 2 but after that some other world governments were partially in control of S.H.I.E.L.D. via the World Security Council.