It sounds so simple and straightforward

“An attention to the judgment of other nations is important to every government for two reasons: The one is, that independently of the merits of any particular plan or measure, it is desireable on various accounts, that it should appear to other nations as the offspring of a wise and honorable policy: The second is, that in doubtful cases, particularly where the national councils may be warped by some strong passion, or momentary interest, the presumed or known opinion of the impartial world, may be the best guide that can be followed.” – James Madison, “The Federalist LXIII”