Read the oath of allegiance of the united states. i hereby declare, on oath . . that i will support and defend the constitution and laws of the united states of america against all enemies, foreign and domestic; that i will bear true faith and allegiance to the same; that i will bear arms [weapons] on behalf of the united states when required by the law . . so me god. this oath is recited by the us president on inauguration day. a soldier when he or she joins the us military. a us supreme court justice who joins the bench. an immigrant who wants to become a us citizen.