Civilizational international societies have dominated history over functional ones

Evidence

Barry Buzan, “From International System to International Society: Structural Realism and Regime Theory Meet the English School,” International Organization, 47 (Summer 1993), 327–352, who distinguishes between “civilizational” and “functional” models of international society and concludes that “civilizational international societies have dominated the historical record” and that there “appear to be no pure cases of functional international societies.” (p. 336). — Samuel P. Huntington, The Clash of Civilizations and the…, 951

Categorization

• XREF: Connects to the library’s institution-and-reputation literature (Milgrom, Bernstein) on how real-world trading orders are embedded in social structure.
• QUESTION: What exactly distinguishes a ‘civilizational’ from a ‘functional’ international society, and how would a fully functional one operate?