On April 2, 1917, at the call of President Wilson, Congress met and declared that a state of war exists between the Imperial German government and the people of the United States. A call for volunteers went out to fill the quotas for the Army, Navy and Marine Corps and to bring the National Guard to full strength. Within three months more than a million volunteers responded. A series of eight post cards printed in color that year showed khaki-uniformed soldiers performing various duties in training camps. The cards carried these titles: The Charge, Signaling, Digging Trenches, Machine Gun Practice, Artillery in Action, Cleaning Rifles, After the Hike and Shelter Tent Inspections. Kansas City Times, October 22, 1973.
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