The American Expeditionary Forces (AEF) in World War I

Big wars create big literatures, and World War I was the biggest war to hit Europe since Napoleon. The United States joined the fight in 1917 and proceeded to create a military force exceeding four million men. Because of its enormous impact on the American fabric, the war has created an extensive number of writings by participants as well as by later historians who sought to make some sense out of the slaughter.