General of the Armies John J. Pershing (1860¿1948) had a long and decorated military career but is most famous for leading the American Expeditionary Forces in World War I. He published a memoir, My Experiences in the World War, and has been the subject of several biographies, but the literature regarding this towering figure and his enormous role in the First World War deserves to be expanded to include a collection of his wartime correspondence. Carefully edited by John T. Greenwood, volume 4 of John J. Pershing and the American Expeditionary Forces in World War I, 1917¿1919 covers the period March 21¿May 19, 1918, when General Pershing faced continuing controversies with the British and French political and military leaders who desperately sought American manpower to replace their mounting losses. Pershing's plans to build the AEF were disrupted after the long-anticipated German grand offensive struck the British front on the Somme on March 21, 1918, followed by a second German offe