Lord Kitchener Wants You is a 1914 advertisement by Alfred Leete which was developed into a recruitment poster. It depicted Lord Kitchener, the British Secretary of State for War, above the words "WANTS YOU". Kitchener, wearing the cap of a British field marshal, stares and points at the viewer calling them to enlist in the British Army against the Central Powers. The image is considered one of the most iconic and enduring images of World War I. A hugely influential image and slogan, it has inspired imitations in other countries.

James Montgomery Flagg was an American artist, comics artist, and illustrator. He worked in media ranging from fine art painting to cartooning, but is best remembered for his political posters, particularly his 1917 poster of Uncle Sam created for United States Army recruitment during World War I.