On January 7, 2077, all FEV research was moved to the newly constructed Mariposa Military Base to commence testing of the virus on human subjects. The United States Defense Department, fearing international espionage, moved a military team under the command of Colonel Robert Spindel and Captain Roger Maxson onto the site to secure and oversee the project, now dubbed the FEV ( Forced Evolutionary Virus) project. In 2076, the NBC division of West Tek achieved breakthrough results in the Pan-Immunity Virion Project.
Main article: Brotherhood of Steel (Lost Hills) Though small, the Brotherhood has been an influential group in the history of the wasteland, first as a survivalist group, then a major research and development house, then finally as an enemy of the New California Republic, fighting a war against the New California Republic on the west coast. While the goals of the Brotherhood vary from chapter to chapter, they share a core mission centered on seizing and regulating pre-War technology throughout the wasteland. The Brotherhood has its roots in the United States Armed Forces, founded by a United States Army security team stationed at Mariposa Military Base before the Great War.