Attached is a pie chart illustrating the expansion of the U.S. Army beginning in April of 1917 through 1918, when it reached the zenith of its might. The chart also indicates the shrinkage in National Guard units within the same time frame.
Read about the W.W. I growth of the U.S. Marine Corps...
Click here to read what the young women of France thought about the Doughboys.
A diagram pulled from a 1931 U.S. Government study indicating the number of soldiers in the American Army each month from 1917 through 1919, and the number of Doughboys who were deployed in Europe.
Click here to read an interview with the World War I American fighter pilot Eddy Rickenbacker.