The 'I Want You' poster featuring Uncle Sam is one of the most iconic pieces of American propaganda, originally created by James Montgomery Flagg in 1917 for World War I recruitment. Inspired by a British poster featuring Lord Kitchener, Flagg used his own face as the model for Uncle Sam to avoid the hassle of finding a model. In internet culture, the image has been repurposed into a versatile meme used to point directly at the viewer, often demanding they join a specific community, perform a certain action, or acknowledge a humorous truth. Its direct eye contact and pointing finger make it an incredibly effective tool for calls to action or playful accusations across social media platforms.