Uncle Sam is a personification of the United States government and is often used as a symbol of patriotism. He is typically depicted as a tall man with a white beard, wearing a top hat adorned with stars and stripes, and dressed in a suit that resembles the American flag. The character originated during the War of 1812 and has since become an iconic representation of American values and national pride. The image of Uncle Sam is frequently used in political cartoons, advertisements, and military recruitment posters, most famously in the 1917 "I Want You" campaign. This symbol encourages citizens to support their country and participate in civic duties, embodying the spirit of patriotism and national unity.