NATO’s dense institutionalization beyond mutual defense is what made it survive its founding threat.

Evidence

Traditional alliances, unlike NATO, do not share NATO’s development of norms and procedures beyond mutual defense. We have here one key feature, then, that might explain why NATO is a deviant case for neorealism. One of the variable features of a regime is its institutionalization (the degree to which its norms and practices are formalized within a particular structure and process). … NATO is at the heart of what has been called a “Euro-Atlantic security regime” built around an American extended deterrence commitment, forward defense in Europe, political coexistence with first the Soviet Union and then Russia, and large U.S. troop commitments, all guided by a closely coordinated policymaking framework. — Robert B. McCalla, NATO’s persistence after the cold war, 107

Categorization

  • XREF: Distinguishing an alliance (weak norms, dies with its threat) from a regime (thick norms, persists) is the conceptual key for the reader’s question about group identity outliving enemies. — connects to: NATO stayed cohesive despite neorealist predictions of its collapse — Robert B. McCalla, NATO’s persistence after the cold war, 57; Alliances may persist through habit and precaution after threats recede — Robert B. McCalla, NATO’s persistence after the cold war, 61; Regime norms embed themselves in officials’ belief systems, creating internal momentum to perpetuate them. (+4 more)