Vernon E. Kniptash, an Indiana national guardsman who served in the Rainbow Division during World War I, observed firsthand some of the Great War's fiercest fighting. As a radio operator with the Headquarters Company of the 150th Field Artillery, he was in constant contact with French and British forces as well as with American troops, and thus gained a broad perspective on the hostilities. Editor E. Bruce Geelhoed introduces and annotates Kniptash's...