This poster is a clear example of <em>Persuasion.</em> Persuasion is used precisely to influence the reader, observers or audience. It is widely used in marketing a publicity to convince or “persuade” consumer to buy a specific product, or to see a movie. Since persuasion is also linked with morality and ethics, the poster uses it to persuade the Americans to be faithful to the country.
“<em>someone Talked”</em> and point at an unknown person is using the ethic and moral of the people