Summary
International law’s effectiveness does not require a centralized authority, but rather relies on decentralized, polycentric systems that evolve through human interaction, norms, reputation, and trust to enforce agreements and restrain powerful actors.
Nature of Law vs Legislation
Hayek distinguished between legislation (rules created by a sovereign backed by violence) and law (natural principles of just conduct discovered and applied by judges), establishing that international law exists as rules and principles governing interstate relations without requiring a global government for enforcement.
Natural law principles predate formal legislation, as C.S. Lewis documented in “The Abolition of Man” showing remarkable similarity across ancient legal codes on core issues like murder, theft, and incest, demonstrating universal principles independent of sovereign creation.
Common law judges discover, articulate, and apply existing societal rules rather than creating new ones, operating within a system of purpose-independent rules of just conduct that emerge through human choice, not design, similar to how language rules evolve.
Historical Examples of Decentralized Legal Systems
Medieval law merchant governed trade among merchants from different countries through rapid repercussions like blacklisting for violations, enforcing norms without physical punishment across political boundaries or centralized sovereign authority.
Whaling communities developed efficient property rights through informal norms: slow-moving whales belonged to the first ship to attach them, while fast-moving whales belonged to the first harpooner with a marked harpoon, even if another ship brought it in, with captains abiding by rules for long-term economic interest despite short-term temptations since violating norms led to complete shunning and inability to sell goods.
Maritime law demonstrates polycentric law and decentralized enforcement functioning effectively across jurisdictions, proving legal systems can operate without centralized sovereign control.
Competing Authorities and Non-Enforcement
Even in systems with a centralized sovereign, there exist de facto competing authorities and non-enforcement, as demonstrated by US states and cities ignoring federal drug laws, showing decentralization within supposedly unified legal frameworks.
Decentralized legal systems with competing authorities (like dictionary makers or English professors) can handle edge cases, deviations, and errors potentially better than centralized systems with few judges or legislators, as multiple interpreters provide checks and balances.
International Law Enforcement Mechanisms
International law exists even without perfect enforcement; while powerful countries may violate it, smaller countries can still boycott, sanction, and pressure aggressors to comply, creating consequences without centralized enforcement authority.
Objective adjudication bodies trusted by the community are needed to establish facts in contentious situations like alleged war crimes, as political biases and doctored evidence can cloud perceptions in decentralized systems.
Critique of Current International Organizations
International organizations like the UN, with powerful nations’ representatives and vetoes, don’t discover natural law principles but legislate rules reflecting collective will, often proving ineffective, inefficient, or corrupt while lacking enforcement mechanisms, making the “rules-based international order” a fiction where Security Council members and allies like Israel act freely, vetoing condemnations and ignoring decisions.