Entitled: "Enlist - On which side of the window are you?". Poster shows a man looking out window at troops marching with large American flag. Prior to the outbreak of WWI, military recruitment in the US was conducted primarily by individual states. Upon entering the war, however, the federal government took on an increased role. The increased emphasis on a national effort was reflected in World War I recruitment methods. There were basic appeals to these recruitment campaigns: patriotism, job/career/education, adventure/challenge, social status, and travel. Between 1915 and 1918, 42% of all army recruitment posters were themed primarily by patriotism. Artist Laura Brey, 1917.