CEVAP:

• The Quadruple Alliance (later Quintuple) that was extended to the peacetime and formed the great power ensemble.
• The periodical congress system that served as an institutional consultation mechanism among great powers to maintain the status quo.
• The diffusion of “promulgation of norms and rules of European public law” that gave “the institutional, territorial, and great-power arrangements in Europe a certain sense of legal-based legitimacy and authority” (Ikenberry, 2001: 98)