The United States entered World War I, in 1917 in alliance with France and Great Britain. The U.S. Army had just 133,000 troops and the government desperately needed finical public support, and military recruitments to fight. Congress passed the Selective Service Act, which led to around 2.8 million recruitments by the end of the Great War. Around 2 million more Americans voluntarily served in the armed forces during the conflict.
The U.S. government used propaganda posters to encourage the public to support military activities. These posters were made of patriotic and attention-grabbing slogans, convincing people to support the government and military. These posters were published in newspapers and magazines. In 1917 the U.S. government’s public information committee formed a Division of Pictorial Publicity, and their main goal was to use the advertising techniques in messaging the war news.
Take a look at some of the US WWI posters below.