#WWI was the first war that saw the mainstream media play a significant role in reporting news from the frontline back home - and the first that saw governments and #military intelligence methodically produce propaganda posters to stir #patriotism. Inspired by Kitchener, Flagg’s WWI poster also became personal - Uncle Sam needed help and it was up to the family to rally behind him. Flagg created 46 more illustrations before his death but ‘I Want #YOU’ is his most memorable - and likely the most infamous war poster in the world. Which of these posters have you not seen before? #HavaianasLivreDeCliches