The persuasive technique that the poster uses is: glittering generalities.
Glittering generalities is a persuasive technique that is used to emotionally appeal to the readers. In advertising, glittering generalities is used to paint images and words that appeal to the audience.
In the painting created by Norman Rockwell during World War II, we read the text; Ours...to fight for. Freedom from Want. Then, we see people dining in a happy mood.
The text and picture were aimed at appealing to the emotions of the readers.
Learn more about glittering generalities here:
brainly.com/question/1758169
