Uncle Sam

J. M. Flagg's 1917 poster was based on the original British Lord Kitchener poster of three years earlier. It was used to recruit soldiers for both World War I and World War II into the United States Army. Flagg used a modified version of his own face for Uncle Sam, and veteran Walter Botts provided the pose.

Uncle Sam is a common national personification of the United States, depicting the federal government or the country as a whole. Since the early 19th century, Uncle Sam has been a popular symbol of the U.S. government in American culture and a manifestation of patriotic emotion. Uncle Sam has also developed notoriety for his appearance in military propaganda, made popular in a 1917 World War I recruiting poster by James Montgomery Flagg.

According to legend, the character came into use during the War of 1812 and may have been named after Samuel Wilson, but the true origin is obscure. The first reference to Uncle Sam in formal literature (as distinct from newspapers) was in the 1816 allegorical book The Adventures of Uncle Sam, in Search After His Lost Honor.

While the figure of Uncle Sam often specifically represents the government, the female figure of Columbia represents the United States as a nation. An archaic character, Brother Jonathan, was known to represent the American populace.