Foreign policy and diplomacy go hand in hand and are usually
studied together, although they are significantly different in terms of
theory and practice. Both of them have their own definition(s), levels of
decision and goals, outcomes and assessment criteria, meanings and
portfolios.
In simple words, foreign policy is about politics, while diplomacy
is bureaucracy (specialized public service within central administration).
At least this is the European largely accepted understanding, unlike
American authors who see “diplomacy” on a more political dimension,
in fact usin[...]