The posters published during World War 1 were part of a campaign to encourage the American public to join the European war. The U.S joined the war pack when Congress declared war on Germany. Posters were designed and illustrated by people in fine art galleries, put on sides of buildings and workplaces with messages asking the Americans to join the war. These advertisements became a tool to create propaganda to shape American mutility about Europe and how U.S ethnic background its in the larger United American cultural identity.