Which entity was established as a result of a Directive?

The Department of Defense was established as a result of a directive, specifically under the National Security Act of 1947. This act unified the military services and created the framework for the current structure of the U.S. military. A directive often refers to an authoritative instruction or order that initiates the creation or regulation of entities to fulfill specific governmental or organizational objectives.

In contrast, pediatric registries and international registries typically arise from collaborations within healthcare sectors and may not directly stem from formal governmental directives. The World Health Organization, while a significant global health entity, was established through international treaties and agreements rather than a single directive. Understanding the historical context of these entities helps clarify why the Department of Defense aligns with the notion of establishment through a directive.