New Vegas, originally known as Las Vegas in the Wasteland before Robert House revived its reconstruction, is a city built upon the remains of Las Vegas, located in southern Nevada.
Unlike the other major cities of the United States, Vegas emerged from the atomic fire of the Great War relatively unscathed, with most of the major damage caused by the downfall of society in general. Vegas' survival is owed to the actions of Robert House. In 2065, House predicted that a nuclear exchange between the USA and China would take place within the next 15 years, and decided to put all of his resources into protecting his home city of Las Vegas. He used his considerable intelligence and vast wealth to ensure that when war finally came, he would be prepared. He created an army of Securitrons, some to police the strip, but the bulk of them were hidden beneath Fortification Hill for activation at a later date. He also had his own hotel, the Lucky 38 Casino, fitted with radar-jamming systems, missile arrays, a laser defense network, and life-support systems.