The next great step was to expand westward and acquire a real 'Rome' in the form of New Vegas that could be the base of his new empire. The militaristic might Caesar's Legion achieved completely pacified the lands that the Legion occupied, but safe roads were only the first step to fully realizing a permanent Legion that could continue after his rule.
Since subjugating the desolate region of the Grand Canyon beginning in 2247, he has since forged his legion conquering 87 tribes, assimilated from the former Southwestern United States. He is revered by legionaries as the self-proclaimed 'Son of Mars,' a former member of the Followers of the Apocalypse and a former citizen of the NCR. Caesar, born Edward Sallow, is the leader, dictator and co-founder of Caesar's Legion in 2281.