First printed in 1917 and 1918 as the United States entered World War I, then due to its overwhelming popularity, the poster with the iconic image of "Uncle Sam" was later adapted for use in World War II.
First printed in 1917 and 1918 as the United States entered World War I, then due to its overwhelming popularity, the poster with the iconic image of "Uncle Sam" was later adapted for use in World War II.