United States campaigns in World War I

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The United States campaigns in World War I began after American entry in the war in early April 1917. The American Expeditionary Force (AEF) served on the Western Front, under General John J. Pershing, and engaged in 13 official military campaigns between 1917 and 1918, for which campaign streamers were designated. The streamer uses the colors of the World War I Victory Medal ribbon which had a red center with a rainbow on each side of the center stripe and a purple edge. The double rainbow symbolizes the dawn of a new era and the calm which follows the storm.

The details above and following are taken from "The Army Flag and Its Streamers", a pamphlet which was originally prepared in 1964 by the Office of the Chief of Military History, in cooperation with the Office of the Chief of Information and the U.S. Army Exhibit Unit, to provide general summaries of each of the campaign ribbons authorized to be displayed on the Army flag. It was subsequently updated by the Center of Military History to add the campaigns from Vietnam.^[1]