In the late nineteenth century, international legal scholars increasingly rejected natural law foundations in favor of legal positivism, positing that all international legal obligations derive exclusively from the explicit or implicit consent of sovereign states. This positivist turn, however, engendered a persistent theoretical conundrum regarding the formation of customary international law. By definition, a rule of customary law emerges only when a general and consistent practice among states is accompanied by *opinio juris*—the conviction that the practice in question is legally mandated.
The paradox for strict positivists is temporal: for a newly emerging rule of customary law to crystallize, the earliest states engaging in the constitutive practice must do so under the belief that the conduct is already required by international law. Yet, ex hypothesi, because the rule is only just emerging, this belief must be factually erroneous. Some legal theorists have attempted to circumvent this paradox by characterizing the initial state practice as an implicit "offer" and subsequent compliance by others as "acceptance." However, this contractarian analogy fails to account for a fundamental feature of the international system: established customary rules are routinely treated as binding upon newly independent states that had no opportunity to participate in either the putative offer or its acceptance. Consequently, strict state-consent theories remain uncomfortably reliant on either a fiction of retroactive consent or the tacit admission that certain international obligations bind sovereigns independently of their will.
Based on the passage, which one of the following can be most reasonably inferred about the earliest states whose actions contribute to the formation of a new rule of customary international law under the strict positivist framework?
- AThey possess a clear intent to establish a new legal obligation that will ultimately bind newly independent states.
- BThey rely upon natural law justifications for their conduct until a sufficient number of states have formalized the practice.
- CThey consciously engage in a legal fiction in order to circumvent the requirement for explicit state consent.
- They base their actions on a premise about the status of international law that is factually incorrect at the moment they act.Answer
- EThey articulate their initial behavior as a contractual offer to other sovereign entities within the international system.