Enlist In The Navy Vintage WWI Poster Restored and digitally enhanced World War I poster showing Uncle Sam, in the uniform of a soldier, protecting a woman who has collapsed beneath a cross inscribed "Slavery" and "Barbarism." Uncle Sam also points a revolver at the Kaiser, who wears a crown and royal robes and brandishes a whip. Statue of Liberty visible in background. Imperfections and tears removed. Colors corrected. Image courtesy of Library of Congress.