In this lesson, students will look at posters and photographs from the time the United States entered WWI. The posters are meant to engage citizens by encouraging them to enlist or to help with the war effort at home. This homefront effort included assisting British orphans, buying liberty bonds, and saving food to help soldiers. The photographs in this lesson show rallies held for buying liberty bonds and planting war gardens. Students will be asked to examine and analyze these primary sources in order to determine how they compelled American citizens to contribute to the war effort.