The NCR then - in its quest to conquer and restore civilization to the wastes - began marching east to assimilate the tribes and consolidate power, seeking new lands and resources. Having crushed Caesar, the NCR annexed the Mojave and tightened its grip on the American Southwest. The NCR, with the Courier at the helm, has wiped away the last vestiges of Caesar and his Legion. Set 10 years after the events of New Vegas.