Portal:Fallout: New Vegas
Caesar chose to emulate the values and structure of Imperial Roman legions because he recognized it as a working template for a society equal to the challenges of a post-nuclear world, one that would prevent humanity from fracturing again and establish an age of stability, a new Pax Romana. In the words of its founder, the Legion is a nationalist, imperialist, totalitarian, homogeneous culture that absorbs everyone into itself, obliterating their previous identity.
The game takes place in 2281, four years after the events of Fallout 3, and thirty-nine years after Fallout 2. The Courier, the player's character, is meant to deliver a package from Primm to New Vegas. However, the Courier is intercepted by the Great Khans and Benny, who leave the Courier for dead in a shallow grave.