The Enclave

"'Courage Today, Victory Tomorrow.'"One of the very few old world organizations to survive the Great War, the Enclave finds its roots in various branches of the pre-War American government and military. Its founding members embraced the inevitability of nuclear war; they believed that the majority of the nation could not and would not survive it, and that as long as the 'important people' of the United States survived, they could regroup quickly when worse came to worst, ultimately wipe out communism once and for all, and restore and rebuild the country.

Arrival in New California
For a long time after the Great War, the Enclave sat quietly in its oil rig, consolidating its forces and working on gaining a technological edge over anyone on the mainland. Eventually, when they felt it would be safe, they decided it was time to move out and start working towards the rebirth of America. Using their vertibirds, the Enclave sent out scouting parties all over California, the closest state to the oil rig.

Government
The Enclave is a secretive political, scientific, and militaristic organization that is descended directly from members of the pre-War United States government, and claims to be the legally-sanctioned continuation of the government, while also styling themselves and their overall demeanor as such.