The Enclave is a nation state established after the Great War, formed by members of the pre-War United States government and military industrial complex. It claims authority over the entire United States of America, considering itself the legal continuation of the U.S. government and styling itself as such. Relative to other human societies throughout the wasteland, it is extremely small. The Enclave oil rig, the single largest concentration of Enclave population in the wasteland, was home to between a hundred and a thousand inhabitants. By comparison, the largest city in the wasteland built from scratch, Shady Sands is home to 3,000 citizens alone. The Enclave exercises control of a number of military bases scattered across the former United States. The Enclave joined the Axis of Empires under the banner of the Reformed United States of America.