NCR-Enclave War

The NCR-Enclave conflict was a military conflict between the temporarily aligned New California Republic and the Brotherhood of Steel against the Enclave in New California. The conflict began some time after Control Station Enclave's destruction and ended sometime after with the decisive sacking of Navarro. Precisely when this occurred is unknown.

War
Several years after the destruction of the Oil Rig by the Chosen One, the NCR, convinced that the remaining Enclave forces were a threat to security of the region, sacked Camp Navarro. The NCR proved victorious, either capturing or destroying the base. The surviving Enclave forces scattered, hunted by both the NCR and the Brotherhood of Steel.

Outcome
Remaining Enclave personnel in California either were recruited by the NCR, fled west or east and went into hiding, or fully integrated into the NCR by hiding their identity; those found out from time to time were arrested and tried for war crimes. Some were able to reach Nevada, where the NCR's more tenuous presence gave them the opportunity to quietly blend into large towns.

At least one Enclave installation, a former Vertibird refueling station in the Mojave Wasteland, managed to avoid being discovered by the NCR and local Brotherhood of Steel.

After sacking Navarro, the NCR recovered an item with the markings of the Divide's military installations, alongside lots more advanced technology they couldn't even begin to understand. This package was a detonator that contained missile launch codes that merely needed to get within range and activate the launch computers within a silo. When the Courier delivered this package to the Divide, the detonation signal activated the ICBMs below ground, causing the earthquakes and radioactive storms that shaped the Divide into what it is in the 2280s.

Appearances
The NCR-Enclave conflict and/or the attack on Navarro is mentioned in Fallout: New Vegas (in the quest For Auld Lang Syne) and its add-on Lonesome Road.