How would you define what international theory is, in a single sentence?Why Is There No International Theory?’

Concept note

Wight, Martin (1966) ‘Why Is There No International Theory?’, in Herbert Butterfield and Martin Wight (eds.) Diplomatic Investigations: Essay in the Theory of International Politics, London: George Allen & Unwin Ltd.,17-34.

How would you define what international theory is, in a single sentence?