Richard Faulkner has written the most thorough social history of the Americans, or "doughboys," who served in World War I. As a history professor, I would like my students to understand the value of social history: that it allows scholars to understand the lived experiences of those who did not necessarily have special titles next to their names but who worked together to bring about an accomplishment. Faulkner takes this approach with the doughboys, so that his focus is not on John Pershing but on all that animated the lives of the more than four million Americans who made the journey to Europe. After examining more than five thousand letters, he understands the training they underwent before their journey overseas, the foods they ate, the uniforms they wore, the shelters that housed them, the weapons they fired, their relations with their French and British allies as well as the Germans they opposed, the unsavory activities they undertook, their experiences in battles, and more. What especially stands out to me is the level of advance in weaponry from the Civil War era to 1917. Whereas Civil War soldiers could fire only a few rounds per minute, the doughboys could fire close to twenty from their rifles or hundreds from machine guns. This placed a premium on fielding determined and well-trained soldiers, who ultimately succeeded in aiding the Allied cause against Germany. But Faulkner is also quick to note some of the shortcomings of the Army, such as the rudimentary level of training for some of the units and the segregation that marred the service of African-Americans. The book thus allows readers to imagine themselves undergoing the common hardships of war while also pointing to the lessons learned from the experience. Faulker does leave out some important details from the war that future historians would be wise to study: the experiences of the pilots and the sailors, as well as the postwar experiences of those who suffered from posttraumatic stress disorder and other ailments. But I believe he has authored the most thorough study yet of what it was like to serve in the Great War.